WO2012035853A1 - 含窒素芳香族化合物、有機半導体材料及び有機電子デバイス - Google Patents
含窒素芳香族化合物、有機半導体材料及び有機電子デバイス Download PDFInfo
- Publication number
- WO2012035853A1 WO2012035853A1 PCT/JP2011/065554 JP2011065554W WO2012035853A1 WO 2012035853 A1 WO2012035853 A1 WO 2012035853A1 JP 2011065554 W JP2011065554 W JP 2011065554W WO 2012035853 A1 WO2012035853 A1 WO 2012035853A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- organic
- carbon atoms
- layer
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- FKIWYVDTKQMKFB-UHFFFAOYSA-N CC(C)[Si+](C(C)C)C(C)Cc([nH]c1cc(-c2ccccc2)ccc11)c1-c1ccccc1[N+]([O-])=O Chemical compound CC(C)[Si+](C(C)C)C(C)Cc([nH]c1cc(-c2ccccc2)ccc11)c1-c1ccccc1[N+]([O-])=O FKIWYVDTKQMKFB-UHFFFAOYSA-N 0.000 description 2
- BNCAYFQXLSZVRP-UHFFFAOYSA-N CC(C)[Si+](C(C)C)(C(C)C)[n]1c2cc(-c3ccccc3)ccc2cc1 Chemical compound CC(C)[Si+](C(C)C)(C(C)C)[n]1c2cc(-c3ccccc3)ccc2cc1 BNCAYFQXLSZVRP-UHFFFAOYSA-N 0.000 description 1
- XMMLNAKDKPSAFF-UHFFFAOYSA-N CCCCCCCC[n]1c([n](C)c2c3cccc2)c3c2c1cccc2 Chemical compound CCCCCCCC[n]1c([n](C)c2c3cccc2)c3c2c1cccc2 XMMLNAKDKPSAFF-UHFFFAOYSA-N 0.000 description 1
- DUMRSEHMILCPAP-UHFFFAOYSA-N CCCCCCC[n](c1c2cccc1)c([n](C)c1c3)c2c1ccc3-c1ccccc1 Chemical compound CCCCCCC[n](c1c2cccc1)c([n](C)c1c3)c2c1ccc3-c1ccccc1 DUMRSEHMILCPAP-UHFFFAOYSA-N 0.000 description 1
- YXBYWMNWJAAATM-UHFFFAOYSA-N CCCC[n]1c([n](C)c2c3cccc2)c3c2c1cccc2 Chemical compound CCCC[n]1c([n](C)c2c3cccc2)c3c2c1cccc2 YXBYWMNWJAAATM-UHFFFAOYSA-N 0.000 description 1
- ZDCLVSYGLANBBH-UHFFFAOYSA-N C[n](c1c2cccc1)c1c2c(cccc2)c2[n]1C Chemical compound C[n](c1c2cccc1)c1c2c(cccc2)c2[n]1C ZDCLVSYGLANBBH-UHFFFAOYSA-N 0.000 description 1
- WPMYJSHMBJUBLB-UHFFFAOYSA-N C[n]1c([nH]c2c3ccc(-c4ccccc4)c2)c3c(cc2)c1cc2-c1ccccc1 Chemical compound C[n]1c([nH]c2c3ccc(-c4ccccc4)c2)c3c(cc2)c1cc2-c1ccccc1 WPMYJSHMBJUBLB-UHFFFAOYSA-N 0.000 description 1
- SNHMUERNLJLMHN-UHFFFAOYSA-N Ic1ccccc1 Chemical compound Ic1ccccc1 SNHMUERNLJLMHN-UHFFFAOYSA-N 0.000 description 1
- DCNSZQSMSIQRCM-UHFFFAOYSA-N OB(c1c[nH]c2cc(-c3ccccc3)ccc12)O Chemical compound OB(c1c[nH]c2cc(-c3ccccc3)ccc12)O DCNSZQSMSIQRCM-UHFFFAOYSA-N 0.000 description 1
- WQPXEXRSRRHHAL-UHFFFAOYSA-N [O-][N+](c1ccccc1-c(c(c1c2)ccc2-c2ccccc2)c[n]1-c1ccccc1)=O Chemical compound [O-][N+](c1ccccc1-c(c(c1c2)ccc2-c2ccccc2)c[n]1-c1ccccc1)=O WQPXEXRSRRHHAL-UHFFFAOYSA-N 0.000 description 1
- WRKMWVJKHWIJOM-UHFFFAOYSA-N [O-][N+](c1ccccc1-c1c[nH]c2cc(-c3ccccc3)ccc12)=O Chemical compound [O-][N+](c1ccccc1-c1c[nH]c2cc(-c3ccccc3)ccc12)=O WRKMWVJKHWIJOM-UHFFFAOYSA-N 0.000 description 1
- JXMZUNPWVXQADG-UHFFFAOYSA-N [O-][N+](c1ccccc1I)=O Chemical compound [O-][N+](c1ccccc1I)=O JXMZUNPWVXQADG-UHFFFAOYSA-N 0.000 description 1
- OHNWDTCRYDIHOP-UHFFFAOYSA-N c(cc1)ccc1-[n](c1cc(-[n]2c3ccccc3c3c2cccc3)ccc11)c([n](c2c3)-c(cc4)ccc4-[n]4c(cccc5)c5c5c4cccc5)c1c2ccc3-[n]1c2ccccc2c2c1cccc2 Chemical compound c(cc1)ccc1-[n](c1cc(-[n]2c3ccccc3c3c2cccc3)ccc11)c([n](c2c3)-c(cc4)ccc4-[n]4c(cccc5)c5c5c4cccc5)c1c2ccc3-[n]1c2ccccc2c2c1cccc2 OHNWDTCRYDIHOP-UHFFFAOYSA-N 0.000 description 1
- ZGOFHAOFEZLZII-UHFFFAOYSA-N c(cc1)ccc1-[n](c1ccccc11)c2c1c(cc(cc1)-c(cc3)cc4c3[s]c3ccccc43)c1[n]2-c1cccc(-[n]2c3ccccc3c3c2cccc3)c1 Chemical compound c(cc1)ccc1-[n](c1ccccc11)c2c1c(cc(cc1)-c(cc3)cc4c3[s]c3ccccc43)c1[n]2-c1cccc(-[n]2c3ccccc3c3c2cccc3)c1 ZGOFHAOFEZLZII-UHFFFAOYSA-N 0.000 description 1
- KOOGZIZBRGFICV-UHFFFAOYSA-N c(cc1)ccc1-c(cc1)cc([n]2-c3ccccc3)c1c(c(c1c3)ccc3-c3ccccc3)c2[n]1-c1cccc(-[n]2c3ccccc3c3c2cccc3)c1 Chemical compound c(cc1)ccc1-c(cc1)cc([n]2-c3ccccc3)c1c(c(c1c3)ccc3-c3ccccc3)c2[n]1-c1cccc(-[n]2c3ccccc3c3c2cccc3)c1 KOOGZIZBRGFICV-UHFFFAOYSA-N 0.000 description 1
- UDQXXDLCFLCCBB-UHFFFAOYSA-N c(cc1)ccc1-c(cc12)ccc1c(c1ccccc1[nH]1)c1[n]2-c1ccccc1 Chemical compound c(cc1)ccc1-c(cc12)ccc1c(c1ccccc1[nH]1)c1[n]2-c1ccccc1 UDQXXDLCFLCCBB-UHFFFAOYSA-N 0.000 description 1
- AXZWGEUVMXKBEJ-UHFFFAOYSA-N c1c(-c2ccccc2)[o]c(-c(cc2[n]3-c4ccccc4)ccc2c(c(cc2)c4cc2-c2ccc(-c5ccccc5)[o]2)c3[n]4-c2cccc(-[n]3c4ccccc4c4c3cccc4)c2)c1 Chemical compound c1c(-c2ccccc2)[o]c(-c(cc2[n]3-c4ccccc4)ccc2c(c(cc2)c4cc2-c2ccc(-c5ccccc5)[o]2)c3[n]4-c2cccc(-[n]3c4ccccc4c4c3cccc4)c2)c1 AXZWGEUVMXKBEJ-UHFFFAOYSA-N 0.000 description 1
- VIQSSPQPPFTPDS-UHFFFAOYSA-N c1c(-c2ccccc2)[s]c(-c(cc2[n]3-c4ccccc4)ccc2c(c(c2c4)ccc4-c4ccc(-c5ccccc5)[s]4)c3[n]2-c2cccc(-[n]3c(cccc4)c4c4c3cccc4)c2)c1 Chemical compound c1c(-c2ccccc2)[s]c(-c(cc2[n]3-c4ccccc4)ccc2c(c(c2c4)ccc4-c4ccc(-c5ccccc5)[s]4)c3[n]2-c2cccc(-[n]3c(cccc4)c4c4c3cccc4)c2)c1 VIQSSPQPPFTPDS-UHFFFAOYSA-N 0.000 description 1
- KVVBMAQSZVYTCW-UHFFFAOYSA-N c1c[nH]c2cc(-c3ccccc3)ccc12 Chemical compound c1c[nH]c2cc(-c3ccccc3)ccc12 KVVBMAQSZVYTCW-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
- C07D491/04—Ortho-condensed systems
- C07D491/044—Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring
- C07D491/048—Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being five-membered
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
- C07D495/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D495/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/484—Insulated gate field-effect transistors [IGFETs] characterised by the channel regions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/32—Stacked devices having two or more layers, each emitting at different wavelengths
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
- H10K85/346—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising platinum
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1007—Non-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1029—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1059—Heterocyclic compounds characterised by ligands containing three nitrogen atoms as heteroatoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1088—Heterocyclic compounds characterised by ligands containing oxygen as the only heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1092—Heterocyclic compounds characterised by ligands containing sulfur as the only heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1096—Heterocyclic compounds characterised by ligands containing other heteroatoms
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2101/00—Properties of the organic materials covered by group H10K85/00
- H10K2101/10—Triplet emission
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Definitions
- the present invention relates to a novel nitrogen-containing aromatic compound and an organic electronic device using the same, and further relates to a light emitting element, a thin film transistor, and a photovoltaic element using the compound as an organic semiconductor material.
- organic electronics devices using organic compounds as semiconductor materials have made remarkable progress.
- Typical applications include organic electroluminescence elements (hereinafter referred to as organic EL elements) that are expected as next-generation flat panel displays, and low-cost printing such as thin-film transistors used for pixel drive of displays.
- organic EL elements organic electroluminescence elements
- low-cost printing such as thin-film transistors used for pixel drive of displays.
- organic thin film transistors organic TFTs
- photovoltaic elements organic thin film solar cells
- a high-temperature process and a high-vacuum process are essential for forming a thin film. Since a high-temperature process is required, it is difficult to form a thin film of silicon on a plastic substrate or the like. Therefore, it has been difficult to impart flexibility and weight reduction to a product incorporating a semiconductor element. In addition, since a high vacuum process is required, it is difficult to increase the area and cost of a product incorporating a semiconductor element.
- organic compounds are easier to process than inorganic silicon, it is expected that low-cost devices will be realized by using organic compounds as semiconductor materials.
- a semiconductor device using an organic compound can be manufactured at a low temperature, and thus can be applied to a wide variety of substrates including a plastic substrate.
- organic compound semiconductor materials are structurally flexible, by using a combination of a plastic substrate and an organic compound semiconductor material, application to organic semiconductor products that take advantage of these characteristics, such as organic EL panels and It is expected to realize devices such as flexible displays such as electronic paper, liquid crystal displays, information tags, electronic artificial skin sheets, and large area sensors such as sheet type scanners.
- Organic semiconductor materials used in such organic electronic devices are used for improving the luminous efficiency of organic EL elements, extending their lifetime and driving voltage, lowering the threshold voltage of organic TFT elements, and improving switching speed. There is a need to improve the charge mobility of the organic thin film solar cells and the photoelectric conversion efficiency of organic thin film solar cells.
- a host material that is responsible for charge transport in the light emitting layer is important in order to increase the light emission efficiency.
- the carbazole compound 4,4′-bis (9-carbazolyl) biphenyl (hereinafter referred to as CBP) introduced in Patent Document 1 and introduced in Non-Patent Document 1 1,3-dicarbazolylbenzene (hereinafter referred to as mCP).
- CBP carbazole compound 4,4′-bis (9-carbazolyl) biphenyl
- mCP 1,3-dicarbazolylbenzene
- FIrpic blue phosphorescent materials represented by bis [2- (4,6-difluorophenyl) pyridinato-N, C2 ′] (picolinato) iridium complex
- a host material that is balanced in both charge (hole / electron) injection and transport characteristics is required. Further, a compound that is electrochemically stable and has high heat resistance and excellent amorphous stability is desired, and further improvement is required.
- organic TFT element materials organic semiconductor materials having charge transportability comparable to amorphous silicon have been reported in recent years.
- pentacene which is a hydrocarbon-based acene-type polycyclic aromatic molecule in which five benzene rings are linearly condensed
- Non-Patent Document 2 as an amorphous semiconductor
- Patent Document 2 proposes a method of forming a pentacene crystal in a dilute solution of o-dichlorobenzene without using a vacuum deposition method.
- the manufacturing method is difficult and a stable element has not been obtained.
- a hydrocarbon-based acene-type polycyclic aromatic molecule such as pentacene also has a low oxidation stability.
- organic thin-film solar cells have been initially studied with a single-layer film using a merocyanine dye or the like, but a multi-layer film having a p-layer that transports holes and an n-layer that transports electrons is used.
- a multi-layer film having a p-layer that transports holes and an n-layer that transports electrons is used.
- the materials used when the multilayer film began to be studied were copper phthalocyanine (CuPc) for the p layer and peryleneimides (PTCBI) for the n layer.
- microlayer separation is achieved by using conductive polymers as the material for the p layer, mixing fullerene (C60) derivatives as the material for the n layer, and heat-treating them.
- C60 fullerene
- the material system used here was mainly poly-3-hexylthiophene (P3HT) as the material for the p-layer and C60 derivative (PCBM) as the material for the n-layer.
- Patent Document 3 discloses an organic thin film solar cell using a compound having a fluoranthene skeleton, but does not provide satisfactory photoelectric conversion efficiency.
- Patent Document 4 indoloindole compounds as shown below are disclosed. However, they only disclose indoloindole compounds condensed with [3,2-b] and organic transistors using these compounds.
- Patent Documents 5 and 6 disclose organic EL elements using the following compounds. However, these only disclose compounds having a benzochalcogenobenzochalcogenophene skeleton condensed with [3,2-b] and organic EL devices using these compounds.
- JP-A-2001-313178 WO2003 / 016599 JP2009-290091A JP2009-054809A JP 2009-246139 A JP 2009-246140 A
- the present invention aims to provide a novel nitrogen-containing aromatic compound that can be used as an organic semiconductor material that solves the problems of the prior art as described above.
- the present invention relates to a nitrogen-containing aromatic compound represented by the general formula (1).
- X represents NA ′, O, S or Se
- A represents an alkyl group having 1 to 30 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, or the number of carbon atoms.
- R is independently hydrogen, an alkyl group having 1 to 30 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, an alkynyl group having 2 to 30 carbon atoms, or 6 to 30 carbon atoms. Or an aromatic heterocyclic group having 3 to 30 carbon atoms which does not contain 4 or more condensed heterocyclic rings.
- a ′ is an alkyl group having 1 to 30 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, an alkynyl group having 2 to 30 carbon atoms, or an aromatic heterocyclic ring having 6 to 50 carbon atoms. It represents a group-substituted aromatic hydrocarbon group or an aromatic heterocyclic group having 3 to 50 carbon atoms that does not contain 4 or more condensed heterocyclic rings.
- N-A ′ nitrogen-containing aromatic compounds represented by the general formula (1)
- compounds in which X is represented by N-A ′ are preferred compounds.
- the present invention also relates to an organic semiconductor material containing the nitrogen-containing aromatic compound and an organic electronic device using the organic semiconductor material.
- the nitrogen-containing aromatic compound of the present invention is represented by the general formula (1).
- the nitrogen-containing aromatic compound of the present invention is also referred to as the compound of the present invention or the compound represented by the general formula (1).
- X represents N-A ′, O, S or Se.
- N-A ', O or S is preferable, and N-A' is more preferable.
- A represents an alkyl group having 1 to 30 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, an alkynyl group having 2 to 30 carbon atoms, or 6 to 6 carbon atoms.
- it is an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, or an aromatic hydrocarbon group having 6 to 30 carbon atoms.
- it is an aromatic heterocyclic group having 3 to 30 carbon atoms which does not contain a fused heterocyclic ring having 4 or more rings.
- a ′ is an alkyl group having 1 to 30 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, an alkynyl group having 2 to 30 carbon atoms, or an aromatic heterocyclic ring having 6 to 50 carbon atoms. It represents a group-substituted aromatic hydrocarbon group or an aromatic heterocyclic group having 3 to 50 carbon atoms that does not contain 4 or more condensed heterocyclic rings.
- it is an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, or an aromatic heterocyclic group having 6 to 30 carbon atoms.
- It is a substituted aromatic hydrocarbon group or an aromatic heterocyclic group having 3 to 30 carbon atoms that does not contain 4 or more condensed heterocyclic rings.
- a and A ′ are different in the case of an aromatic hydrocarbon group having 6 to 30 carbon atoms, but are common in other cases.
- a and A ′ in the general formula (1) may be the same.
- a or A ′ is an alkyl group having 1 to 30 carbon atoms
- the carbon number thereof is preferably 1 to 20, more preferably 1 to 10.
- Specific examples of the alkyl group include, when unsubstituted, a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, and a decyl group, preferably a methyl group.
- the alkyl group may be linear or branched.
- the alkyl group may have a substituent, and when these have a substituent, examples of the substituent include a cycloalkyl group having 3 to 11 carbon atoms, an aromatic hydrocarbon group having 6 to 18 carbon atoms, and a carbon number. 3 to 18 aromatic heterocyclic groups.
- the total number of substituents is 1-10. Preferably it is 1-6, more preferably 1-4. Moreover, when it has two or more substituents, they may be the same or different.
- a or A ′ is a cycloalkyl group having 3 to 30 carbon atoms
- the carbon number is preferably 3 to 20, more preferably 5 to 10.
- Specific examples of the cycloalkyl group include, when unsubstituted, a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, a cyclohexyl group, and a decahydronaphthyl group.
- a cyclopentyl group or a cyclohexyl group is preferable.
- the cycloalkyl group may have a substituent, and when these have a substituent, the substituent may be an alkyl group having 1 to 10 carbon atoms, an aromatic hydrocarbon group having 6 to 18 carbon atoms, or a carbon number. 3 to 18 aromatic heterocyclic groups.
- the total number of substituents is 1-10. Preferably it is 1-6, more preferably 1-4. Moreover, when it has two or more substituents, they may be the same or different.
- a or A ′ is an alkenyl group having 2 to 30 carbon atoms or an alkynyl group having 2 to 30 carbon atoms
- these carbon numbers are preferably 2 to 20, more preferably 2 to 10.
- Specific examples of the alkenyl group or alkynyl group include, when unsubstituted, an ethylenyl group, a propylenyl group, a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, an octenyl group, an acetylenyl group, a propynyl group, a butynyl group, or a pentynyl group.
- an alkenyl group or alkynyl group include, when unsubstituted, an ethylenyl group, a propylenyl group, a butenyl group, a pentenyl group, a hex
- an ethylenyl group, a propylenyl group, a butenyl group, an acetylenyl group, or a propynyl group is mentioned.
- the alkenyl group and alkynyl group may be linear or branched.
- the alkenyl group or alkynyl group may have a substituent.
- substituents include a cycloalkyl group having 3 to 11 carbon atoms and an aromatic hydrocarbon group having 6 to 18 carbon atoms. Or an aromatic heterocyclic group having 3 to 18 carbon atoms.
- A is an aromatic hydrocarbon group having 6 to 50 carbon atoms
- the carbon number is preferably 6 to 30, more preferably 6 to 18.
- a ′ is an aromatic heterocyclic group-substituted aromatic hydrocarbon group having 6 to 50
- the carbon number thereof is preferably 6 to 30, more preferably 6 to 18.
- a or A ′ is an aromatic heterocyclic group having 3 to 50 carbon atoms
- the carbon number is preferably 3 to 30, more preferably 3 to 18.
- the aromatic heterocyclic group does not include four or more condensed heterocyclic rings.
- aromatic hydrocarbon group or aromatic heterocyclic group examples include, in the case of unsubstituted, benzene, pentalene, indene, naphthalene, azulene, heptalene, octalene, indacene, acenaphthylene, phenalene, phenanthrene, anthracene, tridene, fluoranthene.
- the number to be linked is preferably 2 to 10, more preferably 2 to 7, and the linked aromatic rings may be the same. It may be different.
- the bonding position of A bonded to nitrogen is not limited, and it may be a ring at the end of a linked aromatic ring or a ring at the center.
- the aromatic ring is a generic term for an aromatic hydrocarbon ring and an aromatic heterocyclic ring.
- the linked aromatic ring contains at least one heterocyclic ring, it is included in the aromatic heterocyclic group.
- the monovalent group generated by connecting a plurality of aromatic rings is represented by the following formula, for example.
- Ar 1 to Ar 6 represent a substituted or unsubstituted aromatic ring.
- Specific examples of the group formed by linking a plurality of the aromatic rings include, for example, biphenyl, terphenyl, bipyridine, bipyrimidine, vitriazine, terpyridine, bistriazylbenzene, dicarbazolylbenzene, carbazolylbiphenyl, dicarbazolylbiphenyl.
- the aromatic heterocyclic group not containing 4 or more condensed heterocyclic rings means a monocyclic aromatic heterocyclic group or 2 to 3 condensed aromatic heterocyclic groups, and this aromatic heterocyclic group The group may have a substituent.
- this aromatic heterocyclic group is a group formed by connecting a plurality of aromatic rings as represented by the formula (11), for example, this aromatic ring is a condensed aromatic heterocyclic group having 4 or more rings. There is never.
- the aromatic hydrocarbon group or aromatic heterocyclic group may have a substituent, and when these have a substituent, the substituent may be an alkyl group having 1 to 20 carbon atoms, or a group having 3 to 20 carbon atoms.
- An alkyl group having 1 to 4 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, or an amino group having 6 to 15 carbon atoms is preferable.
- the aromatic group branched and linked is not treated as a substituent.
- a or A ′ is an aromatic hydrocarbon group or an aromatic heterocyclic group and has a substituent
- the total number of substituents is 1 to 10.
- it is 1-6, more preferably 1-4.
- substituents they may be the same or different.
- each R is independently hydrogen, an alkyl group having 1 to 30 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, or an alkynyl group having 2 to 30 carbon atoms.
- alkyl group having 1 to 20 carbon atoms Preferably, hydrogen, alkyl group having 1 to 20 carbon atoms, cycloalkyl group having 3 to 20 carbon atoms, alkenyl group having 2 to 20 carbon atoms, alkynyl group having 2 to 20 carbon atoms, aromatic carbonization having 6 to 20 carbon atoms
- An aromatic heterocyclic group having 3 to 20 carbon atoms which does not contain a hydrogen group or a condensed heterocyclic ring having 4 or more rings.
- alkyl group, cycloalkyl group, alkenyl group or alkynyl group are the same as those of the alkyl group, cycloalkyl group, alkenyl group or alkynyl group constituting A.
- alkyl group, cycloalkyl group, alkenyl group or alkynyl group has a substituent is the same as in A.
- aromatic heterocyclic group not containing an aromatic hydrocarbon group or four or more condensed heterocyclic rings are the aromatic hydrocarbon group constituting the above A or a condensed four or more rings except that the total number of carbon atoms is different. It is the same as the aromatic heterocyclic group not containing a heterocyclic ring.
- aromatic hydrocarbon group which does not include these aromatic hydrocarbon groups or four or more condensed heterocyclic rings has a substituent is the same as in A.
- the nitrogen-containing aromatic compound of the present invention can be synthesized using a known method by selecting an indole derivative as a starting material, selecting the starting material according to the structure of the target compound.
- the skeleton in which X is NA is C. S. Chem. Comm. , 1975, 911-912 and Journal of Chemical Research, 1988, 272-273.
- a skeleton in which X is represented by any of O, S, and Se can also be synthesized using the above synthesis example.
- the nitrogen-containing aromatic compound represented by the general formula (1) is obtained by substituting hydrogen on nitrogen of various compounds obtained by the above reaction formula with a corresponding substituent by a coupling reaction such as Ullmann reaction, for example. Can be synthesized.
- the organic semiconductor material of the present invention and the organic electronic device of the present invention will be described. Since the nitrogen-containing aromatic compound of the present invention itself has a function as an organic semiconductor material, it is useful as an organic semiconductor material.
- the organic semiconductor material of the present invention contains the nitrogen-containing aromatic compound of the present invention.
- the organic semiconductor material of the present invention only needs to contain the nitrogen-containing aromatic compound of the present invention.
- the organic semiconductor material may be used by mixing with other organic semiconductor materials, or may contain various dopants. Good.
- the dopant for example, when used as a light emitting layer of an organic EL device, coumarin, quinacridone, rubrene, stilbene derivatives and fluorescent dyes, noble metal complexes such as iridium complexes and platinum complexes can be used.
- the organic electronic device of the present invention is an organic electronic device using the organic semiconductor material of the present invention. That is, the organic electronic device of the present invention is an organic electronic device containing the nitrogen-containing aromatic compound of the present invention. Specifically, the organic electronic device of the present invention includes at least one organic layer, and at least one of the organic layers contains the compound of the present invention.
- the organic electronic device of the present invention can be in various forms, and an organic EL element can be cited as one of preferred embodiments.
- an organic electronic device comprising an organic EL device in which an anode, an organic layer including a light emitting layer and a cathode are laminated on a substrate, wherein the organic layer includes the compound of the present invention. is there.
- FIG. 1 is a cross-sectional view showing a structural example of a general organic EL device used in the present invention, wherein 1 is a substrate, 2 is an anode, 3 is a hole injection layer, 4 is a hole transport layer, and 5 is a light emitting layer. , 6 represents an electron transport layer, and 7 represents a cathode.
- the organic EL device of the present invention may have an exciton blocking layer adjacent to the light emitting layer, and may have an electron blocking layer between the light emitting layer and the hole injection layer.
- the exciton blocking layer can be inserted on either the anode side or the cathode side of the light emitting layer, or both can be inserted simultaneously.
- the organic EL device of the present invention has a substrate, an anode, a light emitting layer and a cathode as essential layers, but it is preferable to have a hole injecting and transporting layer and an electron injecting and transporting layer in layers other than the essential layers, and further emit light. It is preferable to have a hole blocking layer between the layer and the electron injecting and transporting layer.
- the hole injection / transport layer means either or both of a hole injection layer and a hole transport layer
- the electron injection / transport layer means either or both of an electron injection layer and an electron transport layer.
- the compound of the present invention can be used in any layer in an organic EL device. It is preferably used in a light emitting layer, a hole transport layer, an electron blocking layer, a hole blocking layer and an electron transport layer, and particularly preferably used as a light emitting layer, a hole transport layer and an electron blocking layer.
- the organic EL element of the present invention is preferably supported on a substrate.
- the substrate is not particularly limited as long as it is conventionally used for an organic EL element.
- a substrate made of glass, transparent plastic, quartz, or the like can be used.
- an electrode material made of a metal, an alloy, an electrically conductive compound, or a mixture thereof having a high work function (4 eV or more) is preferably used.
- electrode materials include metals such as Au, and conductive transparent materials such as CuI, indium tin oxide (ITO), SnO 2 and ZnO.
- conductive transparent materials such as CuI, indium tin oxide (ITO), SnO 2 and ZnO.
- an amorphous material such as IDIXO (In 2 O 3 —ZnO) that can form a transparent conductive film may be used.
- these electrode materials may be formed into a thin film by a method such as vapor deposition or sputtering, and a pattern having a desired shape may be formed by a photolithography method, or when the pattern accuracy is not so high (about 100 ⁇ m or more) ), A pattern may be formed through a mask having a desired shape when the electrode material is deposited or sputtered. Or when using the substance which can be apply
- the cathode a material having a low work function (4 eV or less) metal (referred to as an electron injecting metal), an alloy, an electrically conductive compound, and a mixture thereof as an electrode material is used.
- an electron injecting metal a material having a low work function (4 eV or less) metal
- an alloy a material having a low work function (4 eV or less) metal
- an alloy a material having a low work function (4 eV or less) metal
- an alloy referred to as an electron injecting metal
- an alloy referred to as an electron injecting metal
- a mixture of an electron injecting metal and a second metal which is a stable metal having a larger work function than this for example, a magnesium / silver mixture
- Suitable are a magnesium / aluminum mixture, a magnesium / indium mixture, an aluminum / aluminum oxide (Al 2 O 3 ) mixture, a lithium / aluminum mixture, aluminum and the like.
- the cathode can be produced by forming a thin film of these electrode materials by a method such as vapor deposition or sputtering.
- the sheet resistance as the cathode is preferably several hundred ⁇ / ⁇ or less, and the film thickness is usually selected in the range of 10 nm to 5 ⁇ m, preferably 50 to 200 nm.
- the light emission luminance is improved, which is convenient.
- a transparent or semi-transparent cathode can be produced by producing the conductive transparent material mentioned in the description of the anode on the cathode after producing the metal with a thickness of 1 to 20 nm on the cathode.
- an element in which both the anode and the cathode are transmissive can be manufactured.
- the light emitting layer may be either a fluorescent light emitting layer or a phosphorescent light emitting layer, but is preferably a phosphorescent light emitting layer.
- the fluorescent light emitting material may be at least one kind of fluorescent light emitting material, but it is preferable to use the fluorescent light emitting material as a fluorescent light emitting dopant and include a host material. .
- a compound represented by the general formula (1) can be used as the fluorescent light emitting material in the light emitting layer.
- the compound is used in any other organic layer, it is known from many patent documents. It is also possible to select and use a fluorescent light emitting material.
- benzoxazole derivatives benzimidazole derivatives, benzothiazole derivatives, styrylbenzene derivatives, polyphenyl derivatives, diphenylbutadiene derivatives, tetraphenylbutadiene derivatives, naphthalimide derivatives, coumarin derivatives, condensed aromatic compounds, perinone derivatives, oxadiazole derivatives, Oxazine derivatives, aldazine derivatives, pyralidine derivatives, cyclopentadiene derivatives, bisstyrylanthracene derivatives, quinacridone derivatives, pyrrolopyridine derivatives, thiadiazolopyridine derivatives, cyclopentadiene derivatives, styrylamine derivatives, diketopyrrolopyrrole derivatives, aromatic dimethylidine compounds, Represented by metal complexes of 8-quinolinol derivatives, metal complexes of pyromethene derivatives, rare earth complexes
- Preferred examples include condensed aromatic compounds, styryl compounds, diketopyrrolopyrrole compounds, oxazine compounds, pyromethene metal complexes, transition metal complexes, and lanthanoid complexes. More preferred are naphthacene, pyrene, chrysene, triphenylene, benzo [c] phenanthrene.
- the amount of the fluorescent light emitting dopant contained in the light emitting layer is 0.01 to 20% by weight, preferably 0.1 to 10% by weight. It should be in range.
- an organic EL element injects electric charges into a luminescent material from both an anode and a cathode, generates an excited luminescent material, and emits light.
- 25% of the generated excitons are excited to the excited singlet state, and the remaining 75% are said to be excited to the excited triplet state.
- certain fluorescent materials are excited triplet states by intersystem crossing etc.
- An organic EL device using the compound of the present invention can also exhibit delayed fluorescence. In this case, both fluorescence emission and delayed fluorescence emission can be included. However, light emission from the host material may be partly or partly emitted.
- the luminescent layer when it is a phosphorescent layer, it includes a phosphorescent dopant and a host material.
- the phosphorescent dopant material preferably contains an organometallic complex containing at least one metal selected from ruthenium, rhodium, palladium, silver, rhenium, osmium, iridium, platinum and gold.
- organometallic complexes are known in the prior art documents and the like, and these can be selected and used.
- Preferred phosphorescent dopants include complexes such as Ir (ppy) 3 having a noble metal element such as Ir as a central metal, complexes such as (Bt) 2 Iracac, and complexes such as (Btp) Ptacac. Specific examples of these complexes are shown below, but are not limited to the following compounds.
- the amount of the phosphorescent dopant contained in the light emitting layer is preferably in the range of 1 to 50% by weight. More preferably, it is 5 to 30% by weight.
- the compound of the present invention represented by the general formula (1) is preferably used.
- the material used for the light emitting layer may be a host material other than the compound of the present invention.
- a plurality of known host materials may be used in combination.
- a known host compound that can be used is preferably a compound that has a hole transporting ability or an electron transporting ability, prevents the emission of light from becoming longer, and has a high glass transition temperature.
- Such other host materials are known from a large number of patent documents and can be selected from them.
- Specific examples of the host material are not particularly limited, but include indole derivatives, carbazole derivatives, indolocarbazole derivatives, triazole derivatives, oxazole derivatives, oxadiazole derivatives, imidazole derivatives, polyarylalkane derivatives, pyrazoline derivatives, Pyrazolone derivatives, phenylenediamine derivatives, arylamine derivatives, amino-substituted chalcone derivatives, styrylanthracene derivatives, fluorenone derivatives, hydrazone derivatives, stilbene derivatives, silazane derivatives, aromatic tertiary amine compounds, styrylamine compounds, aromatic dimethylidene compounds, porphyrins Compounds, anthraquinodimethane derivatives, anthrone derivatives, diphenylquinone derivatives, thiopyran dioxide derivative
- metal complexes represented by tetracarboxylic acid anhydrides, metal complexes of phthalocyanine derivatives, 8-quinolinol derivatives, metal phthalocyanines, metal complexes of benzoxazole and benzothiazole derivatives, polysilane compounds, poly (N-vinylcarbazole) derivatives, And high molecular compounds such as aniline-based copolymers, thiophene oligomers, polythiophene derivatives, polyphenylene derivatives, polyphenylene vinylene derivatives, and polyfluorene derivatives.
- the injection layer is a layer provided between the electrode and the organic layer for lowering the driving voltage and improving the luminance of light emission.
- the injection layer can be provided as necessary.
- the compound of the present invention represented by the general formula (1) can be used. When the compound is used in any other organic layer, any of the conventionally known compounds can be used. A thing can be selected and used.
- the hole blocking layer has a function of an electron transport layer in a broad sense, and is made of a hole blocking material that has a function of transporting electrons and has a remarkably small ability to transport holes. The probability of recombination of electrons and holes can be improved by blocking.
- the compound of the present invention represented by the general formula (1) is preferably used.
- a known hole blocking layer material is used. It may be used.
- the material of the electron carrying layer mentioned later can be used as needed.
- the electron blocking layer is made of a material that has a function of transporting holes and has a very small ability to transport electrons.
- the electron blocking layer blocks the electrons while transporting holes, and the probability of recombination of electrons and holes. Can be improved.
- the compound of the present invention represented by the general formula (1) can be used as a material for the electron blocking layer.
- a hole transport layer described later is used. These materials can be used as needed.
- the thickness of the electron blocking layer is preferably 3 to 100 nm, more preferably 5 to 30 nm.
- the exciton blocking layer is a layer for preventing excitons generated by recombination of holes and electrons in the light emitting layer from diffusing into the charge transport layer. It becomes possible to efficiently confine in the light emitting layer, and the light emission efficiency of the device can be improved.
- the exciton blocking layer can be inserted on either the anode side or the cathode side adjacent to the light emitting layer, or both can be inserted simultaneously.
- the compound of the present invention represented by the general formula (1) can be used as the material for the exciton blocking layer.
- a conventionally known compound is used. Any one can be selected and used. Examples thereof include 1,3-dicarbazolylbenzene (mCP) and bis (2-methyl-8-quinolinolato) -4-phenylphenolatoaluminum (III) (BAlq).
- the hole transport layer is made of a hole transport material having a function of transporting holes, and the hole transport layer can be provided as a single layer or a plurality of layers.
- the hole transport material has either hole injection or transport or electron barrier properties, and may be either organic or inorganic. It is preferable to use the compound of the present invention represented by the general formula (1) for the hole transport layer. However, when the compound is used for any other organic layer, any of conventionally known compounds can be used. Can be selected and used. Examples of known hole transporting materials that can be used include triazole derivatives, oxadiazole derivatives, imidazole derivatives, polyarylalkane derivatives, pyrazoline derivatives and pyrazolone derivatives, phenylenediamine derivatives, aromatic amine derivatives, amino-substituted chalcone derivatives, oxazole derivatives.
- Styrylanthracene derivatives fluorenone derivatives, hydrazone derivatives, stilbene derivatives, silazane derivatives, aniline copolymers, porphyrin compounds, styrylamine compounds, and conductive polymer oligomers, particularly thiophene oligomers. It is preferable to use an aromatic tertiary amine compound and a styrylamine compound, and it is more preferable to use an aromatic tertiary amine compound.
- the electron transport layer is made of a material having a function of transporting electrons, and the electron transport layer can be provided as a single layer or a plurality of layers.
- the compound of the present invention represented by the general formula (1) is preferably used for the electron transport layer.
- any of the conventionally known compounds can be used. For example, nitro-substituted fluorene derivatives, diphenylquinone derivatives, thiopyran dioxide derivatives, carbodiimides, fluorenylidenemethane derivatives, anthraquinodimethane and anthrone derivatives, oxadiazole derivatives, etc. It is done.
- a thiadiazole derivative in which the oxygen atom of the oxadiazole ring is substituted with a sulfur atom, and a quinoxaline derivative having a quinoxaline ring known as an electron withdrawing group can also be used as an electron transport material.
- a polymer material in which these materials are introduced into a polymer chain or these materials are used as a polymer main chain can also be used.
- an organic TFT element As another preferred embodiment of the organic electronic device containing the compound of the present invention, there is an organic TFT element. Specifically, an organic electronic device comprising an organic TFT element having a gate electrode, a gate insulating layer, an organic semiconductor layer, a source electrode and a drain electrode on a substrate, wherein the organic semiconductor layer is the present invention. It is an organic electronic device containing the compound of.
- 2 and 3 are cross-sectional views showing examples of the structure of the organic TFT element, where 8 is a substrate, 9 is a gate electrode, 10 is an insulating layer, 11 is an organic semiconductor layer, 12 is a source electrode, and 13 is a drain electrode. Represent each.
- substrate is not specifically limited, For example, it can be set as a conventionally well-known structure.
- the substrate include glass (for example, quartz glass), silicon, ceramic, and plastic.
- the plastic include general-purpose resin substrates such as polyethylene terephthalate, polyethylene naphthalate, and polycarbonate.
- the resin substrate is preferably a laminate of gas barrier films for reducing the permeability of gases such as oxygen and water vapor.
- a gate electrode is not specifically limited, For example, it can be set as a conventionally well-known structure.
- the gate electrode for example, gold, platinum, chromium, tungsten, tantalum, nickel, copper, aluminum, silver, magnesium, calcium, or an alloy thereof, polysilicon, amorphous silicon, graphite, ITO, zinc oxide, conductive A material such as a conductive polymer can be used.
- a gate insulating layer is not specifically limited, For example, it can be set as a conventionally well-known structure.
- the gate insulating layer SiO 2 , Si 3 N 4 , SiON, Al 2 O 3 , Ta 2 O 5 , amorphous silicon, polyimide resin, polyvinyl phenol resin, polyparaxylylene resin, polymethyl methacrylate resin, fluororesin ( Materials such as PTFE, PFA, PETFE, PCTFE, and CYTOP (registered trademark) can be used.
- the organic semiconductor layer is not particularly limited as long as it contains the compound of the present invention.
- it may be a layer consisting essentially of the compound of the present invention, or may contain other substances other than the compound of the present invention.
- the source electrode and the drain electrode are not particularly limited, and for example, a conventionally known configuration can be used.
- any of metals such as gold, platinum, chromium, tungsten, tantalum, nickel, copper, aluminum, silver, magnesium, calcium or alloys thereof, polysilicon, amorphous silicon, graphite, ITO, Materials such as zinc oxide and conductive polymer can be used.
- the laminated structure in the organic TFT element includes a gate electrode, a gate insulating layer, an organic semiconductor layer, a source electrode and a drain electrode in this order from the substrate side (i), and a gate electrode from the substrate side. And any of the configurations (ii) having the gate insulating layer, the source and drain electrodes, and the organic semiconductor layer in this order.
- the manufacturing method of the organic TFT element is not particularly limited. In the case of the configuration (i), for example, a gate electrode, a gate insulating layer, an organic semiconductor layer, a drain electrode, and a source electrode are sequentially stacked on the substrate. The top contact method is mentioned. In the case of the configuration (ii), there is a bottom contact method in which a gate electrode, a gate insulating layer, a drain electrode and a source electrode, and an organic semiconductor layer are sequentially stacked on a substrate.
- the formation method of the gate electrode, the gate insulating layer, the source electrode, and the drain electrode is not particularly limited.
- any of the above materials can be used, for example, a vacuum evaporation method, an electron beam evaporation method, an RF sputtering method, It can be formed by a known film production method such as spin coating or printing.
- the formation method of the organic semiconductor layer is not particularly limited.
- the organic semiconductor layer is formed by a known film formation method such as a vacuum deposition method, a spin coating method, an inkjet method, or a printing method using the compound of the present invention or an organic semiconductor material. be able to.
- the organic TFT element is not particularly limited in use, but is preferably used as a TFT element for driving a flexible display using a plastic substrate, for example.
- a TFT element made of an inorganic material on a plastic substrate In general, it is difficult to manufacture a TFT element made of an inorganic material on a plastic substrate.
- a process such as a vacuum deposition method, a spin coating method, an ink jet method, a printing method, etc. is used as described above, and a high temperature process is not used.
- a TFT element for driving a pixel can be formed thereon.
- the compound of the present invention is soluble in general-purpose organic solvents such as chloroform, tetrahydrofuran, and toluene, low-cost processes such as spin coating, ink-jet, and printing can be applied. Suitable for the production of flexible displays.
- a photovoltaic element preferably an organic thin film solar cell
- it is a photovoltaic device having a positive electrode, an organic semiconductor layer and a negative electrode on a substrate, and the organic semiconductor layer is an organic electronic device containing the compound of the present invention.
- FIG. 4 is a cross-sectional view showing an example of the structure of a general photovoltaic device used in the present invention, wherein 14 is a substrate, 15 is a positive electrode, 16 is an organic semiconductor layer, and 17 is a negative electrode.
- FIG. 5 is a cross-sectional view showing a structural example in the case where organic semiconductor layers are stacked. 16-a is an electron donating organic semiconductor layer, and 16-b is an electron accepting organic semiconductor layer.
- substrate is not specifically limited, For example, it can be set as a conventionally well-known structure. It is preferable to use a glass substrate or a transparent resin film having mechanical and thermal strength and transparency.
- Transparent resin films include polyethylene, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, polyvinyl alcohol, polyvinyl butyral, nylon, polyether ether ketone.
- an electrode material it is preferable to use a conductive material having a high work function for one electrode and a conductive material having a low work function for the other electrode.
- An electrode using a conductive material having a large work function is a positive electrode.
- Conductive materials with a large work function include metals such as gold, platinum, chromium and nickel, transparent metal oxides such as indium and tin, composite metal oxides (indium tin oxide (ITO), indium Zinc oxide (IZO) or the like is preferably used.
- the conductive material used for the positive electrode is preferably an ohmic junction with the organic semiconductor layer.
- a hole transport layer described later it is preferable that the conductive material used for the positive electrode is an ohmic contact with the hole transport layer.
- An electrode using a conductive material having a small work function serves as a negative electrode.
- the conductive material having a small work function alkali metal or alkaline earth metal, specifically, lithium, magnesium, or calcium is used. Tin, silver, and aluminum are also preferably used.
- an electrode made of an alloy made of the above metal or a laminate of the above metal is also preferably used.
- the conductive material used for the negative electrode is preferably one that is in ohmic contact with the organic semiconductor layer.
- an electron transport layer described later it is preferable that the conductive material used for the negative electrode is in ohmic contact with the electron transport layer.
- the organic semiconductor layer contains the compound of the present invention. That is, it includes an electron donating organic material and an electron accepting organic material containing the compound of the present invention. These materials are preferably mixed, and the electron-donating organic material and the electron-accepting organic material are preferably compatible or phase-separated at the molecular level.
- the domain size of this phase separation structure is not particularly limited, but is usually 1 nm or more and 50 nm or less.
- the organic semiconductor layer preferably has a thickness of 5 nm to 500 nm, more preferably 30 nm to 300 nm.
- the layer having the electron donating organic material of the present invention preferably has a thickness of 1 nm to 400 nm, more preferably 15 nm to 150 nm.
- the electron donating organic material may be composed of only the compound of the present invention represented by the general formula (1) or may contain other electron donating organic materials.
- Examples of other electron-donating organic materials include polythiophene polymers, benzothiadiazole-thiophene derivatives, benzothiadiazole-thiophene copolymers, poly-p-phenylene vinylene polymers, poly-p-phenylene polymers.
- Conjugated polymers such as polyfluorene polymer, polypyrrole polymer, polyaniline polymer, polyacetylene polymer, polythienylene vinylene polymer, H2 phthalocyanine (H2Pc), copper phthalocyanine (CuPc), zinc Phthalocyanine derivatives such as phthalocyanine (ZnPc), porphyrin derivatives, N, N′-diphenyl-N, N′-di (3-methylphenyl) -4,4′-diphenyl-1,1′-diamine (TPD), N , N′-Dinaphthyl-N, N′-diphenyl-4,4′-diphenyl- Triarylamine derivatives such as 1,1′-diamine (NPD), carbazole derivatives such as 4,4′-di (carbazol-9-yl) biphenyl (CBP), oligothiophene derivatives (terthiophene, quarterthiophene, s
- the photovoltaic device material of the present invention further includes an electron-accepting organic material (n-type organic semiconductor). ) Is preferably contained.
- the electron-accepting organic material used in the photovoltaic device of the present invention is an organic material exhibiting n-type semiconductor characteristics, such as 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTCDA), 3,4 , 9,10-perylenetetracarboxylic dianhydride (PTCDA), 3,4,9,10-perylenetetracarboxylic bisbenzimidazole (PTCBI), N, N′-dioctyl-3,4,9,10-naphthyl Tetracarboxydiimide (PTCDI-C8H), 2- (4-biphenylyl) -5- (4-tert-butylphenyl) -1,3,4-oxadiazole (PBD), 2,5-di (1-naphthyl) ) -1,3,4-oxadiazole (BND) and other oxazole derivatives, 3- (4-biphenylyl) -4-phen Triazo
- a hole transport layer may be provided between the positive electrode and the organic semiconductor layer.
- conductive polymers such as polythiophene polymers, poly-p-phenylene vinylene polymers, polyfluorene polymers, phthalocyanine derivatives (H2Pc, CuPc, ZnPc, etc.), Low molecular organic compounds exhibiting p-type semiconductor properties such as porphyrin derivatives are preferably used.
- PEDOT polyethylenedioxythiophene
- PEDOT polyethylenedioxythiophene
- PEDOT polyethylenedioxythiophene
- PEDOT polyethylenedioxythiophene
- PEDOT polystyrene sulfonate
- the thickness of the hole transport layer is preferably 5 nm to 600 nm, more preferably 30 nm to 200 nm.
- an electron transport layer may be provided between the organic semiconductor layer and the negative electrode.
- the material for forming the electron transport layer is not particularly limited, but the above-described electron-accepting organic materials (NTCDA, PTCDA, PTCDI-C8H, oxazole derivatives, triazole derivatives, phenanthroline derivatives, phosphine oxide derivatives, fullerene compounds, Organic materials exhibiting n-type semiconductor properties such as CNT and CN-PPV are preferably used.
- the thickness of the electron transport layer is preferably 5 nm to 600 nm, more preferably 30 nm to 200 nm.
- two or more organic semiconductor layers may be stacked (tandemized) via one or more intermediate electrodes to form a series junction.
- a laminated structure of substrate / positive electrode / first organic semiconductor layer / intermediate electrode / second organic semiconductor layer / negative electrode can be given.
- the open circuit voltage can be improved.
- the hole transport layer described above may be provided between the positive electrode and the first organic semiconductor layer and between the intermediate electrode and the second organic semiconductor layer, and between the first organic semiconductor layer and the intermediate electrode.
- the hole transport layer described above may be provided between the second organic semiconductor layer and the negative electrode.
- At least one layer of the organic semiconductor layer contains the compound of the present invention represented by the general formula (1), and the other layers do not reduce the short-circuit current.
- the donating organic material preferably contains an electron donating organic material having a different band gap. Examples of such electron-donating organic materials include the above-mentioned polythiophene polymers, poly-p-phenylene vinylene polymers, poly-p-phenylene polymers, polyfluorene polymers, polypyrrole polymers, polyaniline.
- Conjugated polymers such as polymer, polyacetylene polymer, polythienylene vinylene polymer, phthalocyanine derivatives such as H2 phthalocyanine (H2Pc), copper phthalocyanine (CuPc), zinc phthalocyanine (ZnPc), porphyrin derivatives, N , N′-diphenyl-N, N′-di (3-methylphenyl) -4,4′-diphenyl-1,1′-diamine (TPD), N, N′-dinaphthyl-N, N′-diphenyl- Triarylamine derivatives such as 4,4′-diphenyl-1,1′-diamine (NPD), Bazoru-9-yl) carbazole derivatives, such as biphenyl (CBP), oligothiophene derivatives (terthiophene, quarter thiophene, sexithiophene, etc. oct thiophene) include low molecular
- the material for the intermediate electrode used here is preferably a material having high conductivity, for example, the above-mentioned metals such as gold, platinum, chromium, nickel, lithium, magnesium, calcium, tin, silver, aluminum, and transparent Metal oxides such as indium and tin, composite metal oxides (indium tin oxide (ITO), indium zinc oxide (IZO), etc.), alloys composed of the above metals and laminates of the above metals, polyethylene Examples include dioxythiophene (PEDOT) and those obtained by adding polystyrene sulfonate (PSS) to PEDOT.
- the intermediate electrode preferably has a light transmission property, but even a material such as a metal having a low light transmission property can often ensure a sufficient light transmission property by reducing the film thickness.
- organic semiconductor layer formation spin coating, blade coating, slit die coating, screen printing coating, bar coater coating, mold coating, printing transfer method, dip pulling method, ink jet method, spray method, vacuum deposition method, etc. This method may be used, and the formation method may be selected according to the characteristics of the organic semiconductor layer to be obtained, such as film thickness control and orientation control.
- the compound of the present invention or the organic semiconductor material of the present invention containing the compound of the present invention has high charge mobility, solvent solubility, oxidation stability, and good film forming property, and an organic semiconductor device using the same Also exhibits high characteristics.
- Specific organic semiconductor devices that can make use of the characteristics of the organic semiconductor material of the present invention include, for example, organic field effect transistors and organic thin-film solar cells. Furthermore, by incorporating these organic semiconductor devices, It can be applied to large area sensors such as displays such as EL panels and electronic paper, liquid crystal displays, information tags, electronic artificial skin sheets and sheet-type scanners.
- intermediate A-7 was 2.4 g (5.4 mmol)
- 3-bromobiphenyl was 1.4 g (5.9 mmol)
- Trans-1,2-cyclohexanediamine 1.1 g (5.3 mmol) and 1,4-dioxane 30 ml were added, and the mixture was stirred for 72 hours while heating at 120 ° C. After cooling the reaction solution to room temperature, the precipitated crystals were collected by filtration, and the solvent was distilled off under reduced pressure.
- Example 11 Each thin film was laminated at a vacuum degree of 4.0 ⁇ 10 ⁇ 5 Pa by a vacuum deposition method on a glass substrate on which an anode made of ITO having a thickness of 110 nm was formed.
- copper phthalocyanine (CuPC) was formed to a thickness of 25 nm on ITO.
- NPB 4,4′-bis [N- (1-naphthyl) -N-phenylamino] biphenyl
- the organic EL element had the light emission characteristics as shown in Table 1.
- Table 1 the luminance, voltage, and luminous efficiency show values at 10 mA / cm 2 .
- the maximum wavelength of the device emission spectrum was 530 nm, and it was found that light was emitted from Ir (ppy) 3 .
- Example 12 An organic EL device was produced in the same manner as in Example 11 except that Compound 1-30 was used as the host material for the light emitting layer.
- Example 13 An organic EL device was produced in the same manner as in Example 11 except that Compound 1-31 was used as the host material for the light emitting layer.
- Comparative Example 1 An organic EL device was produced in the same manner as in Example 11 except that 4,4′-bis (9-carbazolyl) biphenyl (CBP) was used as the host material of the light emitting layer.
- CBP 4,4′-bis (9-carbazolyl) biphenyl
- the maximum wavelength of the device emission spectra of Examples 11 to 13 and Comparative Example 1 was 530 nm, and it was found that all emitted light from Ir (ppy) 3 .
- the emission characteristics are shown in Table 1.
- Example 14 Each thin film was laminated at a vacuum degree of 4.0 ⁇ 10 ⁇ 5 Pa by a vacuum deposition method on a glass substrate on which an anode made of ITO having a thickness of 110 nm was formed.
- copper phthalocyanine (CuPC) was formed to a thickness of 25 nm on ITO.
- NPB 4,4′-bis [N- (1-naphthyl) -N-phenylamino] biphenyl
- compound 1-29 obtained in Synthesis Example 1 as a host material and bis (2- (2′-benzo [4,5-a] thienyl) pyridinato as a phosphorescent dopant are used.
- -N, C3 iridium (acetylacetonate) [(Btp) 2 Iracac] was co-evaporated from different deposition sources to form a light emitting layer with a thickness of 47.5 nm.
- the concentration of (Btp) 2 Iracac in the light emitting layer was 8.0 wt%.
- tris (8-hydroxyquinolinato) aluminum (III) (Alq3) was formed to a thickness of 30 nm as an electron transport layer.
- lithium fluoride LiF
- Al aluminum
- the organic EL element had the light emission characteristics as shown in Table 2.
- Table 2 the luminance, voltage, and luminous efficiency show values at 10 mA / cm 2 .
- Example 15 An organic EL device was produced in the same manner as in Example 14 except that Compound 1-30 was used as the host material for the light emitting layer.
- Example 16 An organic EL device was produced in the same manner as in Example 14 except that Compound 3-3 was used as the host material for the light emitting layer.
- Comparative Example 2 An organic EL device was produced in the same manner as in Example 14 except that bis (2-methyl-8-quinolinolato) -4-phenylphenolato aluminum (III) (BAlq) was used as the host material for the light emitting layer.
- bis (2-methyl-8-quinolinolato) -4-phenylphenolato aluminum (III) (BAlq) was used as the host material for the light emitting layer.
- the maximum wavelength of the device emission spectra of Examples 14 to 16 and Comparative Example 2 was 620 nm, and it was found that all emitted light from (Btp) 2 Iracac.
- the light emission characteristics are shown in Table 2.
- Example 17 The characteristics of the organic semiconductor material of the present invention were evaluated by producing an organic TFT element having the configuration shown in FIG. First, a silicon wafer (n-doped) having a thermally grown silicon oxide layer having a thickness of about 300 nm was washed with a sulfuric acid-hydrogen peroxide aqueous solution, boiled with isopropyl alcohol, and then dried. The obtained silicon wafer was spin-coated with a photoresist, and then exposed with an exposure machine through a photomask. Subsequently, after developing with a developing solution, it wash
- chromium having a thickness of 3 nm and further 50 nm of gold were deposited by vacuum deposition.
- the silicon wafer was immersed in a remover solution to produce a source electrode and a drain electrode on the silicon wafer.
- the silicon wafer on which the source and drain electrodes were formed was washed with acetone, further boiled with isopropyl alcohol and dried, and then immersed in an approximately 1 ⁇ 10 ⁇ 6 M toluene solution of octyltrichlorosilane overnight. Thereafter, the substrate was washed with toluene and isopropyl alcohol, and then heated at 110 ° C.
- a chlorobenzene solution (1 wt%) of compound 1-21 was filtered using a 0.2 ⁇ m syringe filter, and spin-coated on a substrate subjected to OTS treatment at room temperature, 1000 rpm, and 30 seconds. It was then dried at 80 ° C. for 30 minutes. At this time, the thickness of the organic semiconductor layer was 50 nm. In this way, an organic TFT element having the structure shown in FIG. 2 was obtained.
- a voltage of -10 to -100 V is applied between the source electrode and the drain electrode of the obtained organic TFT element, the gate voltage is changed in the range of -30 to -80 V, and the voltage-current curve is 25 ° C.
- the transistor characteristics were evaluated at temperature.
- Field-effect mobility (mu) was calculated using the following equation representing the drain current I d of (I).
- I d (W / 2L) ⁇ C i (V g ⁇ V t ) 2 (I)
- L is the gate length and W is the gate width.
- C i is a capacitance per unit area of the insulating layer, V g is a gate voltage, and V t is a threshold voltage.
- the on / off ratio was calculated from the ratio between the maximum and minimum drain current values (I d ). Table 3 shows the characteristics of the obtained organic TFT element.
- Example 18 In Example 17, a chloroform solution (1 wt%) of compound 1-58 was used instead of the chlorobenzene solution of compound 1-21 (1 wt%), and spin coating was performed at room temperature at 1000 rpm for 30 seconds.
- the organic TFT element was produced in the same manner as described above. Table 3 shows the characteristics of the obtained organic TFT element.
- Table 3 shows that the nitrogen-containing aromatic compound of the present invention has high characteristics as an organic semiconductor.
- the skeleton of the nitrogen-containing aromatic compound of the present invention can control various energy values of ionization potential, electron affinity, and triplet excitation energy by a heterocyclic ring condensed with indole and a substituent on nitrogen.
- charge stability is enhanced.
- the nitrogen-containing aromatic compound of the present invention is considered to have high charge transfer characteristics. Therefore, it is considered that the organic electronic device using the nitrogen-containing aromatic compound of the present invention can exhibit high characteristics. For example, it can be applied to displays such as organic EL panels and electronic paper, liquid crystal displays, organic field effect transistors, organic thin-film solar cells, information tags, electronic artificial skin sheets, large area sensors such as sheet-type scanners, etc. Technical value is great.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Thin Film Transistor (AREA)
- Photovoltaic Devices (AREA)
Abstract
Description
本発明の有機EL素子は、基板に支持されていることが好ましい。この基板については、特に制限はなく、従来から有機EL素子に慣用されているものであればよく、例えば、ガラス、透明プラスチック、石英などからなるものを用いることができる。
有機EL素子における陽極としては、仕事関数の大きい(4eV以上)金属、合金、電気伝導性化合物及びこれらの混合物を電極物質とするものが好ましく用いられる。このような電極物質の具体例としてはAu等の金属、CuI、インジウムチンオキシド(ITO)、SnO2、ZnO等の導電性透明材料が挙げられる。また、IDIXO(In2O3-ZnO)等非晶質で透明導電膜を作製可能な材料を用いてもよい。陽極はこれらの電極物質を蒸着やスパッタリング等の方法により、薄膜を形成させ、フォトリソグラフィー法で所望の形状のパターンを形成してもよく、あるいはパターン精度をあまり必要としない場合は(100μm以上程度)、上記電極物質の蒸着やスパッタリング時に所望の形状のマスクを介してパターンを形成してもよい。あるいは、有機導電性化合物のように塗布可能な物質を用いる場合には、印刷方式、コーティング方式等湿式成膜法を用いることもできる。この陽極より発光を取り出す場合には、透過率を10%より大きくすることが望ましく、また陽極としてのシート抵抗は数百Ω/□以下が好ましい。更に膜厚は材料にもよるが、通常10~1000nm、好ましくは10~200nmの範囲で選ばれる。
一方、陰極としては、仕事関数の小さい(4eV以下)金属(電子注入性金属と称する)、合金、電気伝導性化合物及びこれらの混合物を電極物質とするものが用いられる。このような電極物質の具体例としては、ナトリウム、ナトリウム-カリウム合金、マグネシウム、リチウム、マグネシウム/銅混合物、マグネシウム/銀混合物、マグネシウム/アルミニウム混合物、マグネシウム/インジウム混合物、アルミニウム/酸化アルミニウム(Al2O3)混合物、インジウム、リチウム/アルミニウム混合物、希土類金属等が挙げられる。これらの中で、電子注入性及び酸化等に対する耐久性の点から、電子注入性金属とこれより仕事関数の値が大きく安定な金属である第二金属との混合物、例えば、マグネシウム/銀混合物、マグネシウム/アルミニウム混合物、マグネシウム/インジウム混合物、アルミニウム/酸化アルミニウム(Al2O3)混合物、リチウム/アルミニウム混合物、アルミニウム等が好適である。陰極はこれらの電極物質を蒸着やスパッタリング等の方法により薄膜を形成させることにより、作製することができる。また、陰極としてのシート抵抗は数百Ω/□以下が好ましく、膜厚は通常10nm~5μm、好ましくは50~200nmの範囲で選ばれる。なお、発光した光を透過させるため、有機EL素子の陽極又は陰極のいずれか一方が、透明又は半透明であれば発光輝度が向上し好都合である。
発光層は蛍光発光層、燐光発光層のいずれでも良いが、燐光発光層であることが好ましい。
注入層とは、駆動電圧低下や発光輝度向上のために電極と有機層間に設けられる層のことで、正孔注入層と電子注入層があり、陽極と発光層又は正孔輸送層の間、及び陰極と発光層又は電子輸送層との間に存在させてもよい。注入層は必要に応じて設けることができる。注入材料としては、一般式(1)で表される本発明の化合物を用いることができるが、該化合物を他の何れかの有機層に使用する場合は、従来公知の化合物の中から任意のものを選択して用いることができる。
正孔阻止層とは広い意味では電子輸送層の機能を有し、電子を輸送する機能を有しつつ正孔を輸送する能力が著しく小さい正孔阻止材料からなり、電子を輸送しつつ正孔を阻止することで電子と正孔の再結合確率を向上させることができる。
電子阻止層とは、正孔を輸送する機能を有しつつ電子を輸送する能力が著しく小さい材料から成り、正孔を輸送しつつ電子を阻止することで電子と正孔が再結合する確率を向上させることができる。
励起子阻止層とは、発光層内で正孔と電子が再結合することにより生じた励起子が電荷輸送層に拡散することを阻止するための層であり、本層の挿入により励起子を効率的に発光層内に閉じ込めることが可能となり、素子の発光効率を向上させることができる。励起子阻止層は発光層に隣接して陽極側、陰極側のいずれにも挿入することができ、両方同時に挿入することも可能である。
正孔輸送層とは正孔を輸送する機能を有する正孔輸送材料からなり、正孔輸送層は単層又は複数層設けることができる。
電子輸送層とは電子を輸送する機能を有する材料からなり、電子輸送層は単層又は複数層設けることができる。
基板は、特に限定されず、例えば、従来公知の構成とすることができる。基板としては、例えば、ガラス(例えば、石英ガラス)、シリコン、セラミック、プラスチックが挙げられる。プラスチックとしては、例えば、ポリエチレンテレフタレート、ポリエチレンナフタレート、ポリカーボネート等の汎用の樹脂基板が挙げられる。樹脂基板は、酸素、水蒸気等のガスの透過性を低くするためのガスバリア膜を積層したものであることが好ましい。
ゲート電極は、特に限定されず、例えば、従来公知の構成とすることができる。ゲート電極としては、例えば、金、白金、クロム、タングステン、タンタル、ニッケル、銅、アルミニウム、銀、マグネシウム、カルシウム等の金属またはそれらの合金、ポリシリコン、アモルファスシリコン、グラファイト、ITO、酸化亜鉛、導電性ポリマー等の材料を用いることができる。
ゲート絶縁層は、特に限定されず、例えば、従来公知の構成とすることができる。ゲート絶縁層としては、SiO2、Si3N4、SiON、Al2O3、Ta2O5、アモルファスシリコン、ポリイミド樹脂、ポリビニルフェノール樹脂、ポリパラキシリレン樹脂、ポリメチルメタクリレート樹脂、フッ素樹脂(PTFE、PFA、PETFE、PCTFE、CYTOP(登録商標)等)等の材料を用いることができる。
有機半導体層は、本発明の化合物を含むものであればよく、特に限定されない。例えば、実質的に本発明の化合物のみからなる層であってもよく、本発明の化合物以外の他の物質を含有してもよい。
ソース電極およびドレイン電極は、いずれも特に限定されず、例えば、従来公知の構成とすることができる。ソース電極およびドレイン電極としては、いずれも、金、白金、クロム、タングステン、タンタル、ニッケル、銅、アルミニウム、銀、マグネシウム、カルシウム等の金属またはそれらの合金、ポリシリコン、アモルファスシリコン、グラファイト、ITO、酸化亜鉛、導電性ポリマー等の材料を用いることができる。
基板は、特に限定されず、例えば、従来公知の構成とすることができる。機械的、熱的強度を有し、透明性を有するガラス基板や透明性樹脂フィルムを使用することが好ましい。透明性樹脂フィルムとしては、ポリエチレン、エチレン-酢酸ビニル共重合体、エチレン-ビニルアルコール共重合体、ポリプロピレン、ポリスチレン、ポリメチルメタアクリレート、ポリ塩化ビニル、ポリビニルアルコール、ポリビニルブチラール、ナイロン、ポリエーテルエーテルケトン、ポリサルホン、ポリエーテルサルフォン、テトラフルオロエチレン-パーフルオロアルキルビニルエーテル共重合体、ポリビニルフルオライド、テトラフルオロエチレン-エチレン共重合体、テトラフルオロエチレン-ヘキサフルオロプロピレン共重合体、ポリクロロトリフルオロエチレン、ポリビニリデンフルオライド、ポリエステル、ポリカーボネート、ポリウレタン、ポリイミド、ポリエーテルイミド、ポリイミド、ポリプロピレン等が挙げられる。
電極材料としては、一方の電極には仕事関数の大きな導電性素材、もう一方の電極には仕事関数の小さな導電性素材を使用することが好ましい。仕事関数の大きな導電性素材を用いた電極は正極となる。この仕事関数の大きな導電性素材としては金、白金、クロム、ニッケルなどの金属のほか、透明性を有するインジウム、スズなどの金属酸化物、複合金属酸化物(インジウム錫酸化物(ITO)、インジウム亜鉛酸化物(IZO)など)が好ましく用いられる。ここで、正極に用いられる導電性素材は、有機半導体層とオーミック接合するものであることが好ましい。さらに、後述する正孔輸送層を用いた場合においては、正極に用いられる導電性素材は正孔輸送層とオーミック接合するものであることが好ましい。
有機半導体層は本発明の化合物を含む。すなわち、本発明の化合物を含む電子供与性有機材料および電子受容性有機材料を含む。これらの材料は混合されていることが好ましく、電子供与性有機材料と電子受容性有機材料が分子レベルで相溶しているか、相分離していることが好ましい。この相分離構造のドメインサイズは特に限定されるものではないが通常1nm以上50nm以下のサイズである。また、電子供与性有機材料と電子受容性有機材料が積層されている場合は、p型半導体特性を示す電子供与性有機材料を有する層が正極側、n型半導体特性を示す電子受容性有機材料を有する層が負極側であることが好ましい。有機半導体層は5nm~500nmの厚さが好ましく、より好ましくは30nm~300nmである。積層されている場合は、本発明の電子供与性有機材料を有する層は上記厚さのうち1nm~400nmの厚さを有していることが好ましく、より好ましくは15nm~150nmである。
APCI-TOFMS, m/z 600 [M+H]+、1H-NMR測定結果(測定溶媒:THF-d8)を図6に示す。
APCI-TOFMS, m/z 679 [M+H]+、1H-NMR測定結果(測定溶媒:THF-d8)を図7に示す。
APCI-TOFMS, m/z 614 [M+H]+
APCI-TOFMS, m/z 689 [M+H]+
APCI-TOFMS, m/z 234 [M+H]+
APCI-TOFMS, m/z 471[M+H]+
APCI-TOFMS, m/z 409 [M+H]+
APCI-TOFMS, m/z 485 [M+H]+
APCI-TOFMS, m/z 544 [M+H]+
APCI-TOFMS, m/z 528 [M+H]+
膜厚110 nmのITOからなる陽極が形成されたガラス基板上に、各薄膜を真空蒸着法にて、真空度4.0×10-5 Paで積層した。まず、ITO上に銅フタロシアニン(CuPC)を25 nmの厚さに形成した。次に、正孔輸送層として4,4'-ビス[N-(1-ナフチル)-N-フェニルアミノ]ビフェニル(NPB)を40 nmの厚さに形成した。次に、正孔輸送層上に、ホスト材料としての合成例1で得た化合物1-21と、燐光発光ドーパントとしてのトリス(2‐フェニルピリジン)イリジウム(III)(Ir(ppy)3)とを異なる蒸着源から、共蒸着し、40 nmの厚さに発光層を形成した。発光層中のIr(ppy)3の濃度は10.0 wt%であった。次に、電子輸送層としてトリス(8-ヒドロキシキノリナト)アルミニウム(III)(Alq3)を20 nmの厚さに形成した。更に、電子輸送層上に、電子注入層としてフッ化リチウム(LiF)を1.0 nmの厚さに形成した。最後に、電子注入層上に、電極としてアルミニウム(Al)を70 nmの厚さに形成し、有機EL素子を作製した。
発光層のホスト材料として、化合物1-30を用いた以外は実施例11と同様にして有機EL素子を作製した。
発光層のホスト材料として、化合物1-31を用いた以外は実施例11と同様にして有機EL素子を作製した。
発光層のホスト材料として、4,4'-ビス(9-カルバゾリル)ビフェニル(CBP)を用いた以外は実施例11と同様にして有機EL素子を作製した。
膜厚110 nmのITOからなる陽極が形成されたガラス基板上に、各薄膜を真空蒸着法にて、真空度4.0×10-5 Paで積層した。まず、ITO上に銅フタロシアニン(CuPC)を25 nmの厚さに形成した。次に、正孔輸送層として4,4'-ビス[N-(1-ナフチル)-N-フェニルアミノ]ビフェニル(NPB)を55 nmの厚さに形成した。次に、正孔輸送層上に、ホスト材料としての合成例1で得た化合物1-29と、燐光発光ドーパントとしてのビス(2-(2'-ベンゾ[4,5-a]チエニル)ピリジナト-N,C3)イリジウム(アセチルアセトネート)〔(Btp)2Iracac〕とを異なる蒸着源から、共蒸着し、47.5 nmの厚さに発光層を形成した。発光層中の(Btp)2Iracacの濃度は8.0 wt%であった。次に、電子輸送層としてトリス(8-ヒドロキシキノリナト)アルミニウム(III)(Alq3)を30 nmの厚さに形成した。更に、電子輸送層上に、電子注入層としてフッ化リチウム(LiF)を1.0 nmの厚さに形成した。最後に、電子注入層上に、電極としてアルミニウム(Al)を200 nmの厚さに形成し、有機EL素子を作製した。
発光層のホスト材料として、化合物1-30を用いた以外は実施例14と同様にして有機EL素子を作製した。
発光層のホスト材料として、化合物3-3を用いた以外は実施例14と同様にして有機EL素子を作製した。
発光層のホスト材料として、ビス(2-メチル-8-キノリノラト)-4-フェニルフェノラトアルミニウム(III)(BAlq)を用いた以外は実施例14と同様にして有機EL素子を作製した。
本発明の有機半導体材料の特性を、図2に示す構成の有機TFT素子を作製し、評価した。まず、約300 nmの厚みの熱成長酸化ケイ素層を有するシリコンウェハ(nドープ)を、硫酸-過酸化水素水溶液で洗浄し、イソプロピルアルコールで煮沸した後、乾燥した。得られたシリコンウェハにフォトレジストをスピンコート後、フォトマスクを介して露光機により露光した。次いで、現像液で現像を行った後、イオン交換水で洗浄し、空気乾燥した。そのパターニングされたフォトレジストが塗布されたシリコンウェハ上に、真空蒸着法により、厚さ3 nmのクロム、更にその上から50 nmの金を蒸着した。そのシリコンウェハを、リムーバー溶液に浸すことでシリコンウェハ上にソース電極およびドレイン電極を作製した。ソース電極およびドレイン電極が作製されたシリコンウェハをアセトンで洗浄し、さらに、イソプロピルアルコールで煮沸し乾燥した後、オクチルトリクロロシランの約1×10-6M トルエン溶液中に、一晩浸漬した。その後、トルエン、イソプロピルアルコールで洗浄した後、110 ℃で約10 分間加熱することで、オクチルトリクロロシラン(OTS)処理を行った有機TFT基板を作製した。チャネル長はL=25 μm、チャネル幅はW=15.6 μmであった。次に化合物1-21のクロロベンゼン溶液(1重量%)を0.2 μmのシリンジフィルターを用いてろ過し、OTS処理を行った基板上に、室温、1000 rpm、30 秒間の条件でスピンコートした。次いでそれを80 ℃で30 分間乾燥した。この時、有機半導体層の厚さは50 nmであった。このようにして図2に示す構造を有する有機TFT素子を得た。
Id=(W/2L)μCi(Vg-Vt)2 (I)
実施例17において、化合物1-21のクロロベンゼン溶液(1重量%)の代わりに、化合物1-58のクロロホルム溶液(1重量%)を使用し、室温にて1000 rpm、30 秒の条件でスピンコートを行ったほかは同様の操作を行い、有機TFT素子を作製した。得られた有機TFT素子の特性を表3に示す。
Claims (7)
- 一般式(1)で表される含窒素芳香族化合物。
式中、XはN-A’、O、S又はSeを表し、Aは炭素数1~30のアルキル基、炭素数3~30のシクロアルキル基、炭素数2~30のアルケニル基、炭素数2~30のアルキニル基、炭素数6~50の芳香族炭化水素基又は4環以上の縮合複素環を含まない炭素数3~50の芳香族複素環基を表す。Rはそれぞれ独立して水素、炭素数1~30のアルキル基、炭素数3~30のシクロアルキル基、炭素数2~30のアルケニル基、炭素数2~30のアルキニル基、炭素数6~30の芳香族炭化水素基又は4環以上の縮合複素環を含まない炭素数3~30の芳香族複素環基を表す。A'は炭素数1~30のアルキル基、炭素数3~30のシクロアルキル基、炭素数2~30のアルケニル基、炭素数2~30のアルキニル基、炭素数6~50の芳香族複素環基置換の芳香族炭化水素基又は4環以上の縮合複素環を含まない炭素数3~50の芳香族複素環基を表す。 - 一般式(1)において、XがN-A’であることを特徴とする請求項1に記載の含窒素芳香族化合物。
- 請求項1又は2に記載の含窒素芳香族化合物を含むことを特徴とする有機半導体材料。
- 請求項3に記載の有機半導体材料で形成されることを特徴とする有機半導体薄膜。
- 請求項3に記載の有機半導体材料を使用したことを特徴とする有機電子デバイス。
- 有機電子デバイスが、発光素子、薄膜トランジスタ、又は光起電力素子である請求項5に記載の有機電子デバイス。
- 発光素子が、有機電界発光素子である請求項6に記載の有機電子デバイス。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012533899A JP5750112B2 (ja) | 2010-09-13 | 2011-07-07 | 含窒素芳香族化合物、有機半導体材料及び有機電子デバイス |
| CN201180043940.3A CN103108875B (zh) | 2010-09-13 | 2011-07-07 | 含氮芳香族化合物、有机半导体材料及有机电子器件 |
| KR1020137009229A KR101864120B1 (ko) | 2010-09-13 | 2011-07-07 | 함질소 방향족 화합물, 유기 반도체 재료 및 유기 전자 디바이스 |
| EP11824863.2A EP2617724B1 (en) | 2010-09-13 | 2011-07-07 | Organic electroluminescent device |
| US13/818,685 US8766248B2 (en) | 2010-09-13 | 2011-07-07 | Nitrogen-containing aromatic compound, organic semiconductor material, and organic electronic device |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-204102 | 2010-09-13 | ||
| JP2010204102 | 2010-09-13 | ||
| JP2010271873 | 2010-12-06 | ||
| JP2010-271873 | 2010-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012035853A1 true WO2012035853A1 (ja) | 2012-03-22 |
Family
ID=45831331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2011/065554 Ceased WO2012035853A1 (ja) | 2010-09-13 | 2011-07-07 | 含窒素芳香族化合物、有機半導体材料及び有機電子デバイス |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8766248B2 (ja) |
| EP (1) | EP2617724B1 (ja) |
| JP (1) | JP5750112B2 (ja) |
| KR (1) | KR101864120B1 (ja) |
| CN (1) | CN103108875B (ja) |
| TW (1) | TWI558707B (ja) |
| WO (1) | WO2012035853A1 (ja) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013058560A (ja) * | 2011-09-07 | 2013-03-28 | Konica Minolta Holdings Inc | 有機エレクトロルミネッセンス素子材料、有機エレクトロルミネッセンス素子、表示装置、照明装置、並びに化合物 |
| JP2013089928A (ja) * | 2011-10-24 | 2013-05-13 | Konica Minolta Holdings Inc | 有機エレクトロルミネッセンス素子 |
| JP2013093431A (ja) * | 2011-10-25 | 2013-05-16 | Konica Minolta Holdings Inc | 有機エレクトロルミネッセンス素子材料、有機エレクトロルミネッセンス素子、表示装置、並びに照明装置 |
| JPWO2012050002A1 (ja) * | 2010-10-13 | 2014-02-24 | 新日鉄住金化学株式会社 | 含窒素芳香族化合物、有機半導体材料及び有機電子デバイス |
| WO2014050417A1 (ja) * | 2012-09-25 | 2014-04-03 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、照明装置および表示装置 |
| WO2014097866A1 (ja) * | 2012-12-18 | 2014-06-26 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、表示装置および照明装置 |
| WO2014104797A1 (ko) * | 2012-12-28 | 2014-07-03 | 주식회사 동진쎄미켐 | 신규한 유기 화합물 및 이를 포함하는 유기발광소자 |
| US20140203257A1 (en) * | 2013-01-18 | 2014-07-24 | Cheil Industries Inc. | Compound for organic optoelectronic device, organic light emitting diode including the same, and display including the organic light emitting diode |
| KR20140107026A (ko) * | 2013-02-27 | 2014-09-04 | 덕산하이메탈(주) | 유기전기 소자용 화합물, 이를 이용한 유기전기소자 및 그 전자 장치 |
| WO2014193153A1 (ko) * | 2013-05-28 | 2014-12-04 | 주식회사 동진쎄미켐 | 신규한 유기 화합물 및 이를 포함하는 유기발광소자 |
| JP2015111624A (ja) * | 2013-12-06 | 2015-06-18 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、発光性薄膜、表示装置及び照明装置 |
| CN104870424A (zh) * | 2012-12-28 | 2015-08-26 | 东进世美肯株式会社 | 新颖的有机化合物及包含该有机化合物的有机发光元件 |
| WO2015133353A1 (ja) * | 2014-03-07 | 2015-09-11 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、表示装置、照明装置及び発光性組成物 |
| JP2015529639A (ja) * | 2012-07-10 | 2015-10-08 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | 電子用途のためのベンズイミダゾ[1,2−a]ベンズイミダゾール誘導体 |
| WO2016017760A1 (ja) * | 2014-07-31 | 2016-02-04 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、発光性薄膜、表示装置及び照明装置 |
| WO2017115608A1 (ja) * | 2015-12-28 | 2017-07-06 | コニカミノルタ株式会社 | π共役系化合物、有機エレクトロルミネッセンス素子材料、発光材料、電荷輸送材料、発光性薄膜、有機エレクトロルミネッセンス素子、表示装置及び照明装置 |
| KR101789254B1 (ko) | 2013-01-18 | 2017-10-23 | 삼성전자주식회사 | 유기광전자소자용 화합물, 이를 포함하는 유기발광소자 및 상기 유기발광소자를 포함하는 표시장치 |
| US9893290B2 (en) | 2013-07-01 | 2018-02-13 | Cheil Industries, Inc. | Composition and organic optoelectric device and display device |
| JP2019062240A (ja) * | 2012-04-13 | 2019-04-18 | 株式会社半導体エネルギー研究所 | 発光装置、電子機器、照明装置 |
| WO2019159708A1 (ja) * | 2018-02-19 | 2019-08-22 | 浜松ホトニクス株式会社 | 有機光電変換装置及び有機光電変換装置の製造方法 |
| US10593888B2 (en) | 2017-02-23 | 2020-03-17 | Samsung Display Co., Ltd. | Polycyclic compound and organic light-emitting device including the same |
| US10807984B2 (en) | 2017-02-10 | 2020-10-20 | Samsung Display Co., Ltd. | Heterocyclic compound and organic light-emitting device including the same |
| US10818861B2 (en) | 2012-04-13 | 2020-10-27 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device, electronic device, and lighting device |
| US11844274B2 (en) | 2019-04-05 | 2023-12-12 | Samsung Display Co., Ltd. | Organic electroluminescence device and compound for organic electroluminescence device |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105473594B (zh) * | 2013-05-28 | 2018-11-30 | 东进世美肯株式会社 | 新颖的有机化合物及包含该有机化合物的有机发光元件 |
| CN103833754B (zh) * | 2014-01-02 | 2016-03-23 | 山东大学 | 具有二氮杂芳香稠环结构的咔唑并菲啶类化合物及其合成方法 |
| KR102626972B1 (ko) | 2014-09-25 | 2024-01-22 | 롬엔드하스전자재료코리아유한회사 | 신규한 유기 전계 발광 화합물 및 이를 포함하는 유기 전계 발광 소자 |
| CN104387407A (zh) * | 2014-11-28 | 2015-03-04 | 湘潭大学 | 6-甲基-6H-苯并[4,5]噻吩[2,3-b]吲哚、衍生物及其合成方法 |
| US20170025609A1 (en) * | 2015-07-20 | 2017-01-26 | E I Du Pont De Nemours And Company | Electroactive materials |
| WO2017184969A1 (en) * | 2016-04-22 | 2017-10-26 | The Trustees Of Princeton University | Solid-state organic intermediate-band photovoltaic devices |
| KR102606283B1 (ko) | 2018-07-09 | 2023-11-27 | 삼성디스플레이 주식회사 | 유기 발광 소자 |
| KR102628848B1 (ko) | 2018-08-10 | 2024-01-25 | 삼성디스플레이 주식회사 | 축합환 화합물 및 이를 포함하는 유기 발광 소자 |
| KR102777743B1 (ko) | 2018-08-10 | 2025-03-11 | 삼성디스플레이 주식회사 | 유기 전계 발광 소자 및 유기 전계 발광 소자용 축합환 화합물 |
| US11963441B2 (en) | 2018-11-26 | 2024-04-16 | Universal Display Corporation | Organic electroluminescent materials and devices |
| JP7646643B2 (ja) | 2019-10-04 | 2025-03-17 | アンスティトゥート・ナシオナル・ドゥ・ラ・サンテ・エ・ドゥ・ラ・ルシャルシュ・メディカル・(インセルム) | 新規なピリジン-2(1h)オン誘導体、その調製、及び疼痛を処置するためのその使用 |
| CN111303171B (zh) * | 2020-03-27 | 2021-08-03 | 华中科技大学 | 一种苯并呋喃并吲哚类化合物、其制备和应用 |
| CN114621241A (zh) * | 2020-12-11 | 2022-06-14 | 江苏三月科技股份有限公司 | 一种以三嗪接苯并呋喃结构为核心骨架的化合物及其应用 |
| CN114685454B (zh) * | 2020-12-29 | 2024-01-12 | 广州华睿光电材料有限公司 | 有机化合物、混合物、组合物及有机电子器件 |
| US20220310934A1 (en) * | 2021-02-18 | 2022-09-29 | Samsung Display Co., Ltd. | Compound including nitrogen emitting device including the same |
| KR20220118591A (ko) * | 2021-02-18 | 2022-08-26 | 삼성디스플레이 주식회사 | 함질소 화합물 및 이를 포함하는 발광 소자 |
| CN115322201B (zh) * | 2022-07-15 | 2024-01-26 | 湖南科技学院 | 一种大环柱芳烃化合物及其制备方法和应用 |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001313178A (ja) | 2000-04-28 | 2001-11-09 | Pioneer Electronic Corp | 有機エレクトロルミネッセンス素子 |
| WO2003016599A1 (en) | 2001-08-09 | 2003-02-27 | Asahi Kasei Kabushiki Kaisha | Organic semiconductor element |
| JP2009054809A (ja) | 2007-08-28 | 2009-03-12 | Mitsui Chemicals Inc | 有機トランジスタ |
| JP2009246139A (ja) | 2008-03-31 | 2009-10-22 | Hiroshima Univ | 発光素子 |
| JP2009246140A (ja) | 2008-03-31 | 2009-10-22 | Hiroshima Univ | 発光素子 |
| JP2009290091A (ja) | 2008-05-30 | 2009-12-10 | Idemitsu Kosan Co Ltd | 有機薄膜太陽電池用材料及びそれを用いた有機薄膜太陽電池 |
| JP2009302328A (ja) * | 2008-06-13 | 2009-12-24 | Nippon Kayaku Co Ltd | 有機トランジスタ、およびこれが用いられた有機半導体素子 |
| WO2010098246A1 (ja) * | 2009-02-27 | 2010-09-02 | 新日鐵化学株式会社 | 有機電界発光素子 |
| WO2011055933A2 (ko) * | 2009-11-03 | 2011-05-12 | 제일모직 주식회사 | 유기광전소자용 조성물, 이를 이용한 유기광전소자 및 이를 포함하는 표시장치 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5952115A (en) * | 1997-10-02 | 1999-09-14 | Xerox Corporation | Electroluminescent devices |
| US5942340A (en) * | 1997-10-02 | 1999-08-24 | Xerox Corporation | Indolocarbazole electroluminescent devices |
| JP2008218987A (ja) * | 2007-02-06 | 2008-09-18 | Sumitomo Chemical Co Ltd | 組成物及び該組成物を用いてなる発光素子 |
| KR101311934B1 (ko) * | 2009-06-08 | 2013-09-26 | 제일모직주식회사 | 유기광전소자용 조성물 및 이를 이용한 유기광전소자 |
| DE102010033548A1 (de) * | 2010-08-05 | 2012-02-09 | Merck Patent Gmbh | Materialien für elektronische Vorrichtungen |
-
2011
- 2011-07-07 CN CN201180043940.3A patent/CN103108875B/zh not_active Expired - Fee Related
- 2011-07-07 JP JP2012533899A patent/JP5750112B2/ja not_active Expired - Fee Related
- 2011-07-07 EP EP11824863.2A patent/EP2617724B1/en not_active Not-in-force
- 2011-07-07 TW TW100124076A patent/TWI558707B/zh not_active IP Right Cessation
- 2011-07-07 KR KR1020137009229A patent/KR101864120B1/ko not_active Expired - Fee Related
- 2011-07-07 WO PCT/JP2011/065554 patent/WO2012035853A1/ja not_active Ceased
- 2011-07-07 US US13/818,685 patent/US8766248B2/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001313178A (ja) | 2000-04-28 | 2001-11-09 | Pioneer Electronic Corp | 有機エレクトロルミネッセンス素子 |
| WO2003016599A1 (en) | 2001-08-09 | 2003-02-27 | Asahi Kasei Kabushiki Kaisha | Organic semiconductor element |
| JP2009054809A (ja) | 2007-08-28 | 2009-03-12 | Mitsui Chemicals Inc | 有機トランジスタ |
| JP2009246139A (ja) | 2008-03-31 | 2009-10-22 | Hiroshima Univ | 発光素子 |
| JP2009246140A (ja) | 2008-03-31 | 2009-10-22 | Hiroshima Univ | 発光素子 |
| JP2009290091A (ja) | 2008-05-30 | 2009-12-10 | Idemitsu Kosan Co Ltd | 有機薄膜太陽電池用材料及びそれを用いた有機薄膜太陽電池 |
| JP2009302328A (ja) * | 2008-06-13 | 2009-12-24 | Nippon Kayaku Co Ltd | 有機トランジスタ、およびこれが用いられた有機半導体素子 |
| WO2010098246A1 (ja) * | 2009-02-27 | 2010-09-02 | 新日鐵化学株式会社 | 有機電界発光素子 |
| WO2011055933A2 (ko) * | 2009-11-03 | 2011-05-12 | 제일모직 주식회사 | 유기광전소자용 조성물, 이를 이용한 유기광전소자 및 이를 포함하는 표시장치 |
Non-Patent Citations (4)
| Title |
|---|
| APPLIED PHYSICS LETTERS, vol. 82, 2003, pages 2422 - 2424 |
| JOURNAL OF APPLIED PHYSICS, vol. 92, 2002, pages 5259 - 5263 |
| KIENLE M. ET AL.: "Preparation of Heterocyclic Amines by an Oxidative Amination of Zinc Organometallics Mediated by CuI: A New Oxidative Cycloamination for the Preparation of Annulated Indole Derivatives", CHEMISTRY-AN ASIAN JOURNAL, vol. 6, no. 2, 2011, pages 517 - 523, XP008153761 * |
| See also references of EP2617724A4 |
Cited By (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2012050002A1 (ja) * | 2010-10-13 | 2014-02-24 | 新日鉄住金化学株式会社 | 含窒素芳香族化合物、有機半導体材料及び有機電子デバイス |
| JP2013058560A (ja) * | 2011-09-07 | 2013-03-28 | Konica Minolta Holdings Inc | 有機エレクトロルミネッセンス素子材料、有機エレクトロルミネッセンス素子、表示装置、照明装置、並びに化合物 |
| JP2013089928A (ja) * | 2011-10-24 | 2013-05-13 | Konica Minolta Holdings Inc | 有機エレクトロルミネッセンス素子 |
| JP2013093431A (ja) * | 2011-10-25 | 2013-05-16 | Konica Minolta Holdings Inc | 有機エレクトロルミネッセンス素子材料、有機エレクトロルミネッセンス素子、表示装置、並びに照明装置 |
| US10818861B2 (en) | 2012-04-13 | 2020-10-27 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device, electronic device, and lighting device |
| JP2019062240A (ja) * | 2012-04-13 | 2019-04-18 | 株式会社半導体エネルギー研究所 | 発光装置、電子機器、照明装置 |
| US11393997B2 (en) | 2012-04-13 | 2022-07-19 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device, electronic device, and lighting device |
| US11744152B2 (en) | 2012-07-10 | 2023-08-29 | Udc Ireland Limited | Benzimidazo[1,2-a]benzimidazole derivatives for electronic applications |
| JP2015529639A (ja) * | 2012-07-10 | 2015-10-08 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | 電子用途のためのベンズイミダゾ[1,2−a]ベンズイミダゾール誘導体 |
| US10243150B2 (en) | 2012-07-10 | 2019-03-26 | Udc Ireland Limited | Benzimidazo[1,2-a]benzimidazole derivatives for electronic applications |
| US10862051B2 (en) | 2012-07-10 | 2020-12-08 | Udc Ireland Limited | Benzimidazo[1,2-a]benzimidazole derivatives for electronic applications |
| KR101788943B1 (ko) * | 2012-09-25 | 2017-10-20 | 코니카 미놀타 가부시키가이샤 | 유기 일렉트로루미네센스 소자, 조명 장치 및 표시 장치 |
| WO2014050417A1 (ja) * | 2012-09-25 | 2014-04-03 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、照明装置および表示装置 |
| JPWO2014097866A1 (ja) * | 2012-12-18 | 2017-01-12 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、表示装置および照明装置 |
| WO2014097866A1 (ja) * | 2012-12-18 | 2014-06-26 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、表示装置および照明装置 |
| CN104870424A (zh) * | 2012-12-28 | 2015-08-26 | 东进世美肯株式会社 | 新颖的有机化合物及包含该有机化合物的有机发光元件 |
| WO2014104797A1 (ko) * | 2012-12-28 | 2014-07-03 | 주식회사 동진쎄미켐 | 신규한 유기 화합물 및 이를 포함하는 유기발광소자 |
| US10892422B2 (en) | 2013-01-18 | 2021-01-12 | Samsung Electronics Co., Ltd. | Compound for organic optoelectronic device, organic light emitting diode including the same, and display including the organic light emitting diode |
| US20140203257A1 (en) * | 2013-01-18 | 2014-07-24 | Cheil Industries Inc. | Compound for organic optoelectronic device, organic light emitting diode including the same, and display including the organic light emitting diode |
| KR101789254B1 (ko) | 2013-01-18 | 2017-10-23 | 삼성전자주식회사 | 유기광전자소자용 화합물, 이를 포함하는 유기발광소자 및 상기 유기발광소자를 포함하는 표시장치 |
| KR102109349B1 (ko) | 2013-02-27 | 2020-05-12 | 덕산네오룩스 주식회사 | 유기전기 소자용 화합물, 이를 이용한 유기전기소자 및 그 전자 장치 |
| KR20140107026A (ko) * | 2013-02-27 | 2014-09-04 | 덕산하이메탈(주) | 유기전기 소자용 화합물, 이를 이용한 유기전기소자 및 그 전자 장치 |
| WO2014193153A1 (ko) * | 2013-05-28 | 2014-12-04 | 주식회사 동진쎄미켐 | 신규한 유기 화합물 및 이를 포함하는 유기발광소자 |
| US9893290B2 (en) | 2013-07-01 | 2018-02-13 | Cheil Industries, Inc. | Composition and organic optoelectric device and display device |
| JP2015111624A (ja) * | 2013-12-06 | 2015-06-18 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、発光性薄膜、表示装置及び照明装置 |
| JPWO2015133353A1 (ja) * | 2014-03-07 | 2017-04-06 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、表示装置、照明装置及び発光性組成物 |
| WO2015133353A1 (ja) * | 2014-03-07 | 2015-09-11 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、表示装置、照明装置及び発光性組成物 |
| JPWO2016017760A1 (ja) * | 2014-07-31 | 2017-05-18 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、発光性薄膜、表示装置及び照明装置 |
| WO2016017760A1 (ja) * | 2014-07-31 | 2016-02-04 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子、発光性薄膜、表示装置及び照明装置 |
| WO2017115608A1 (ja) * | 2015-12-28 | 2017-07-06 | コニカミノルタ株式会社 | π共役系化合物、有機エレクトロルミネッセンス素子材料、発光材料、電荷輸送材料、発光性薄膜、有機エレクトロルミネッセンス素子、表示装置及び照明装置 |
| JPWO2017115608A1 (ja) * | 2015-12-28 | 2018-10-18 | コニカミノルタ株式会社 | π共役系化合物、有機エレクトロルミネッセンス素子材料、発光材料、電荷輸送材料、発光性薄膜、有機エレクトロルミネッセンス素子、表示装置及び照明装置 |
| US10807984B2 (en) | 2017-02-10 | 2020-10-20 | Samsung Display Co., Ltd. | Heterocyclic compound and organic light-emitting device including the same |
| US10593888B2 (en) | 2017-02-23 | 2020-03-17 | Samsung Display Co., Ltd. | Polycyclic compound and organic light-emitting device including the same |
| JP2019145623A (ja) * | 2018-02-19 | 2019-08-29 | 浜松ホトニクス株式会社 | 有機光電変換装置及び有機光電変換装置の製造方法 |
| JP6990598B2 (ja) | 2018-02-19 | 2022-01-12 | 浜松ホトニクス株式会社 | 有機光電変換装置及び有機光電変換装置の製造方法 |
| US11271044B2 (en) | 2018-02-19 | 2022-03-08 | Hamamatsu Photonics K.K. | Organic photoelectric conversion device, and method for manufacturing organic photoelectric conversion device |
| WO2019159708A1 (ja) * | 2018-02-19 | 2019-08-22 | 浜松ホトニクス株式会社 | 有機光電変換装置及び有機光電変換装置の製造方法 |
| US11844274B2 (en) | 2019-04-05 | 2023-12-12 | Samsung Display Co., Ltd. | Organic electroluminescence device and compound for organic electroluminescence device |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI558707B (zh) | 2016-11-21 |
| TW201217378A (en) | 2012-05-01 |
| JP5750112B2 (ja) | 2015-07-15 |
| CN103108875A (zh) | 2013-05-15 |
| KR20130139916A (ko) | 2013-12-23 |
| US8766248B2 (en) | 2014-07-01 |
| EP2617724A4 (en) | 2014-04-16 |
| KR101864120B1 (ko) | 2018-06-04 |
| JPWO2012035853A1 (ja) | 2014-02-03 |
| EP2617724A1 (en) | 2013-07-24 |
| CN103108875B (zh) | 2016-04-13 |
| EP2617724B1 (en) | 2017-07-05 |
| US20130150576A1 (en) | 2013-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5750112B2 (ja) | 含窒素芳香族化合物、有機半導体材料及び有機電子デバイス | |
| JP5767237B2 (ja) | 含窒素芳香族化合物、有機半導体材料及び有機電子デバイス | |
| JP5834014B2 (ja) | 含カルコゲン芳香族化合物を含む有機半導体材料及び有機電子デバイス | |
| Lee et al. | Organic materials for organic electronic devices | |
| WO2012073888A1 (ja) | ヘテロアセン型化合物、有機半導体材料、及び有機電子デバイス | |
| EP2431445A2 (en) | Compound for organic photoelectric device and organic photoelectric device comprising same | |
| JP5390441B2 (ja) | 有機電界発光素子 | |
| KR20200132898A (ko) | 유기 전계발광 소자 | |
| KR20250085666A (ko) | 4좌 백금 및 팔라듐 착물 이미터 | |
| WO2011138743A1 (en) | Use of pyromellitic diimides in organic electronics and organic photovoltaics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 201180043940.3 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11824863 Country of ref document: EP Kind code of ref document: A1 |
|
| DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
| ENP | Entry into the national phase |
Ref document number: 2012533899 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 13818685 Country of ref document: US |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| REEP | Request for entry into the european phase |
Ref document number: 2011824863 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2011824863 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 20137009229 Country of ref document: KR Kind code of ref document: A |