WO2021150080A1 - 다환 방향족 유도체 화합물 및 이를 이용한 유기발광소자 - Google Patents
다환 방향족 유도체 화합물 및 이를 이용한 유기발광소자 Download PDFInfo
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- WO2021150080A1 WO2021150080A1 PCT/KR2021/000952 KR2021000952W WO2021150080A1 WO 2021150080 A1 WO2021150080 A1 WO 2021150080A1 KR 2021000952 W KR2021000952 W KR 2021000952W WO 2021150080 A1 WO2021150080 A1 WO 2021150080A1
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- 0 C*CC1=C(*)*(C)C2=C1*[C@]1C=CCC=CC=C3C1*2C(C1)CCC(*2C(C(*)=C(*)C*4)=C4*C4C2CC(*2)=*CCCCC4)*2CCC=C1*3 Chemical compound C*CC1=C(*)*(C)C2=C1*[C@]1C=CCC=CC=C3C1*2C(C1)CCC(*2C(C(*)=C(*)C*4)=C4*C4C2CC(*2)=*CCCCC4)*2CCC=C1*3 0.000 description 9
- CAYGUDKOGXHNER-UHFFFAOYSA-N c([o]c1ccccc11)c1N(c1ccccc1)c1cc(N(c2ccccc2)c2ccccc2)cc(Nc2ccccc2)c1 Chemical compound c([o]c1ccccc11)c1N(c1ccccc1)c1cc(N(c2ccccc2)c2ccccc2)cc(Nc2ccccc2)c1 CAYGUDKOGXHNER-UHFFFAOYSA-N 0.000 description 1
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Definitions
- the present invention relates to a polycyclic aromatic derivative compound and a high-efficiency organic light-emitting device with significantly improved luminous efficiency using the same.
- an electron injected from an electron injection electrode (cathode electrode) and a hole injected from a hole injection electrode (anode electrode) are combined in a light emitting layer to form an exciton, and the exciton generates energy
- It is a self-luminous device that emits light while emitting light, and such an organic light-emitting device has a low driving voltage, high luminance, wide viewing angle, and fast response speed, and is in the spotlight as a next-generation light source because of its advantages that it can be applied to a full-color flat panel light emitting display. .
- the structure of the organic layer in the device is optimized, and the material constituting each organic layer is a hole injection material, a hole transport material, a light emitting material, an electron transport material, an electron injection material, an electron blocking material. It should be preceded by a stable and efficient material, but it is still necessary to develop a stable and efficient organic layer structure and each material for an organic light emitting device.
- the structure of the device capable of improving the light emitting characteristics of the organic light emitting device and the development of a new material supporting it are continuously required.
- an object of the present invention is to provide an organic light emitting compound capable of implementing a highly efficient organic light emitting device by being employed in the organic layer of the device and an organic light emitting device including the same.
- the present invention provides a compound represented by the following [Formula A] in order to solve the above problems.
- the present invention includes a first electrode, a second electrode facing the first electrode, and an organic layer interposed between the first electrode and the second electrode, wherein the organic layer is the [Formula A-1] and [Formula A-1] A-2] provides an organic light emitting device comprising at least one specific polycyclic aromatic compound implemented as.
- the polycyclic aromatic derivative compound according to the present invention may be employed in the organic layer in the device to realize a highly efficient organic light emitting device.
- the present invention is included in an organic light emitting device, relates to a polycyclic aromatic derivative compound represented by the following [Formula A], characterized in that it can implement an organic light emitting device with high efficiency and long life.
- Q 1 to Q 5 are the same as or different from each other, and each independently represent a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 carbon atoms, or a substituted or unsubstituted aromatic heterocycle having 2 to 50 carbon atoms.
- Y is NR 1 , CR 2 R 3 , O, S, Se and SiR 4 R 5 Any one selected from, a plurality of Y is the same or different from each other.
- R 1 to R 5 are the same as or different from each other, and each independently hydrogen, deuterium, a substituted or unsubstituted C 1 to C 30 alkyl group, a substituted or unsubstituted C 6 to C 50 aryl group, substituted or unsubstituted A substituted or unsubstituted C 3 to C 30 cycloalkyl group, a substituted or unsubstituted C 2 to C 50 heteroaryl group, a substituted or unsubstituted C 1 to C 30 alkoxy group, or a substituted or unsubstituted C 6 to C 30 aryloxy group , a substituted or unsubstituted C1 to C30 alkylthio group, a substituted or unsubstituted C5 to C30 arylthioxy group, a substituted or unsubstituted C1 to C30 alkylamine group, a substituted or unsubstituted C5 to 30 arylamine
- each of R 1 to R 5 may be combined with any one of the Q 1 to Q 5 rings to additionally form an alicyclic or aromatic monocyclic or polycyclic ring, and R 2 and R 3 and R 4 and Each of R 5 may be connected to each other to additionally form an alicyclic or aromatic monocyclic or polycyclic ring.
- the [Formula A] according to the present invention has the following structural features.
- Q 1 to Q 5 , Q 1 , Q 5 or Q 1 and Q 5 are each selected from the following [Structural Formula B-1] to [Structural Formula B-3] .
- Q 3 is a structural formula selected from the following [Structural Formula B-4] to [Structural Formula B-6].
- Q 1 is, or Q 5 is, or Q 1 and Q 5 are each selected from [Structural Formula B-1] to [Structural Formula B-3] If it is a structural formula, Q 3 is characterized in that it is any one structural formula selected from [Structural Formula B-4] to [Structure Formula B-6].
- Y is NR 1 , CR 2 R 3 , O, S, Se and SiR 4 R 5 Any one selected from, a plurality of Y are the same as or different from each other, and R 1 to R 5 are the same as defined in [Formula A].
- Q 6 is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 carbon atoms, or a substituted or unsubstituted aromatic heterocycle having 2 to 50 carbon atoms.
- R is hydrogen, deuterium, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms, a substituted or unsubstituted carbon number 2 to 50 heteroaryl group, substituted or unsubstituted C 1 to C 30 alkoxy group, substituted or unsubstituted C 6 to C 30 aryloxy group, substituted or unsubstituted C 1 to C 30 alkyltioxy group, substituted Or an unsubstituted C5 to C30 arylthioxy group, a substituted or unsubstituted C1 to C30 alkylamine group, a substituted or unsubstituted C5 to C30 arylamine group, a substituted or unsubstituted C1 to C30 of an alkylsily
- the R may be combined with each other or any one of the Q 1 to Q 5 rings to additionally form an alicyclic or aromatic monocyclic or polycyclic ring.
- '*' is a moiety in which Q 1 , Q 3 and Q 5 are replaced with any one of [Structural Formula B-1] to [Structural Formula B-6], respectively, and bonded to the [Formula A] structure, respectively.
- Q 1 or Q 5 in [Formula A] has any one structural formula selected from [Structural Formula B-1] to [Structural Formula B-3]
- a skeleton structure such as the following [Formula A-1] to [Formula A-6] may be formed.
- Q 3 in [Formula A] has any one structural formula selected from [Structural Formula B-4] to [Structural Formula B-6] , Q 1 or Q 5
- the following [Formula A-22] to [Formula A-37], [Formula A -38] to [Formula A-53] and the like may be formed.
- Q 3 in [Formula A] has any one structural formula selected from [Structural Formula B-4] to [Structural Formula B-6] , Q 1 And Q 5
- all of the above [Structural Formula B-1] to [Structural Formula B-3] have any one structural formula selected from the following [Formula A-54] to [Formula A-79], etc. structure can be formed.
- [Formula A] uses various polycyclic aromatic skeleton structures such as [Formula A-1] to [Formula A-79] to satisfy the desired conditions for various organic material layers of the organic light emitting device, so that high efficiency and long lifespan of organic light emitting devices can be implemented.
- Q 1 to Q 6 are the same as or different from each other, and may be each independently represented by the following [Structural Formula Q-1].
- Z is CR or N, wherein R is hydrogen, deuterium, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C6-C50 aryl group, or substituted or unsubstituted C3-C30 cyclo An alkyl group, a substituted or unsubstituted C2 to C50 heteroaryl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C6 to C30 aryloxy group, a substituted or unsubstituted C1 to 30 alkylthioxy group, substituted or unsubstituted C5 to C30 arylthioxy group, substituted or unsubstituted C1 to C30 alkylamine group, substituted or unsubstituted C5 to C30 arylamine group, substituted or an unsubstituted alkylsilyl group having 1 to 30 carbon atom
- the plurality of R may be bonded to each other or connected to adjacent substituents to form an alicyclic, aromatic monocyclic or polycyclic ring, and the carbon atoms of the formed alicyclic, aromatic monocyclic or polycyclic ring may be selected from among N, S and O It may be substituted with any one or more selected heteroatoms.
- a site structurally binding to the [Formula A] among a plurality of Z may not be defined otherwise as a case of C-H.
- the term 'substituted or unsubstituted' means that Q1 to Q3, R, R 1 to R 13 and R 21 to R 24 are deuterium, cyano group, halogen group, hydroxyl group, nitro group, carbon number 1 to 24 alkyl group, C3-C24 cycloalkyl group, C1-C24 halogenated alkyl group, C1-C24 alkenyl group, C1-C24 alkynyl group, C1-C24 heteroalkyl group, C1-C24 of a heterocycloalkyl group, an aryl group having 6 to 24 carbon atoms, an arylalkyl group having 6 to 24 carbon atoms, a heteroaryl group having 2 to 24 carbon atoms, a heteroarylalkyl group having 2 to 24 carbon atoms, an alkoxy group having 1 to 24 carbon atoms, 1 to carbon atoms 24 alkylamino group, C1-C24 aryla
- the carbon number range of the alkyl group or aryl group in the 'substituted or unsubstituted alkyl group having 1 to 10 carbon atoms', 'substituted or unsubstituted aryl group having 6 to 30 carbon atoms', etc. considers the portion in which the substituent is substituted. It refers to the total number of carbon atoms constituting the alkyl part or the aryl part when viewed as unsubstituted.
- a phenyl group substituted with a butyl group at the para position corresponds to an aryl group having 6 carbon atoms substituted with a butyl group having 4 carbon atoms.
- the meaning that adjacent groups are bonded to each other to form a ring means that adjacent groups can be bonded to each other to form a substituted or unsubstituted alicyclic or aromatic ring, and 'adjacent substituents'
- the substituent may refer to a substituent substituted on an atom directly connected to the substituted atom, a substituent positioned closest to the steric structure to the substituent, or another substituent substituted with the atom in which the substituent is substituted.
- two substituents substituted at an ortho position in a benzene ring and two substituents substituted at the same carbon in an aliphatic ring may be interpreted as 'adjacent substituents'.
- the alkyl group may be linear or branched, and the number of carbon atoms is not particularly limited, but is preferably 1 to 20.
- Specific examples include methyl group, ethyl group, propyl group, n-propyl group, isopropyl group, butyl group, n-butyl group, isobutyl group, tert-butyl group, sec-butyl group, 1-methyl-butyl group, 1- Ethyl-butyl group, pentyl group, n-pentyl group, isopentyl group, neopentyl group, tert-pentyl group, hexyl group, n-hexyl group, 1-methylpentyl group, 2-methylpentyl group, 4-methyl- 2-pentyl group, 3,3-dimethylbutyl group, 2-ethylbutyl group, heptyl group, n-heptyl group, 1-methylhexyl group, 2-
- the alkenyl group includes a straight or branched chain, and may be further substituted by other substituents, specifically, a vinyl group, 1-propenyl group, isopropenyl group, 1-butenyl group, 2-bute Nyl group, 3-butenyl group, 1-pentenyl group, 2-pentenyl group, 3-pentenyl group, 3-methyl-1-butenyl group, 1,3-butadienyl group, allyl group, 1-phenylvinyl-1-yl group , 2-phenylvinyl-1-yl group, 2,2-diphenylvinyl-1-yl group, 2-phenyl-2-(naphthyl-1-yl)vinyl-1-yl group, 2,2-bis(diphenyl -1-yl) vinyl-1-yl group, stilbenyl group, styrenyl group, and the like, but are not limited thereto.
- substituents specifically, a vinyl group, 1-propenyl group
- the alkynyl group also includes a straight or branched chain, and may be further substituted by other substituents, and may include ethynyl, 2-propynyl, and the like, but is limited thereto. it doesn't happen
- the cycloalkyl group includes a monocyclic or polycyclic ring, and may be further substituted by another substituent
- the polycyclic refers to a group in which a cycloalkyl group is directly connected or condensed with another ring group, and the other ring group is a cycloalkyl group.
- the heterocycloalkyl group includes a heteroatom such as O, S, Se, N or Si, and also includes monocyclic or polycyclic, and may be further substituted by other substituents, and polycyclic means heterocyclo
- the alkyl group refers to a group directly connected or condensed with another ring group, and the other ring group may be a heterocycloalkyl group, but may be a different type of ring group, such as a cycloalkyl group, an aryl group, a heteroaryl group, or the like.
- the aryl group may be monocyclic or polycyclic, and examples of the monocyclic aryl group include a phenyl group, a biphenyl group, a terphenyl group, and a stilbene group, and examples of the polycyclic aryl group include a naphthyl group and an anthracenyl group. , phenanthrenyl group, pyrenyl group, perylenyl group, tetracenyl group, chrysenyl group, fluorenyl group, acenaphthacenyl group, triphenylene group, fluoranthene group, etc., but the scope of the present invention is limited only to these examples it's not going to be
- the heteroaryl group is a heterocyclic group containing heteroatoms, and examples thereof include a thiophene group, a furan group, a pyrrole group, an imidazole group, a thiazole group, an oxazole group, an oxadiazole group, a triazole group, a pyridyl group, Bipyridyl group, pyrimidyl group, triazine group, triazole group, acridyl group, pyridazine group, pyrazinyl group, quinolinyl group, quinazoline group, quinoxalinyl group, phthalazinyl group, pyridopyrimidinyl group, pyrido Pyrazinyl group, pyrazino pyrazinyl group, isoquinoline group, indole group, carbazole group, benzooxazole group, benzoimidazole group, benzothiazole
- the alkoxy group may be specifically methoxy, ethoxy, propoxy, isobutyloxy, sec-butyloxy, pentyloxy, iso-amyloxy, hexyloxy, and the like, but is not limited thereto.
- the silyl group refers to a silyl group substituted with alkyl or a silyl group substituted with aryl
- specific examples of the silyl group include trimethylsilyl, triethylsilyl, triphenylsilyl, trimethoxysilyl, and dimethoxyphenylsilyl. , diphenylmethylsilyl, diphenylvinylsilyl, methylcyclobutylsilyl, dimethylfurylsilyl, and the like.
- the amine group may be -NH 2 , an alkylamine group, an arylamine group, etc.
- the arylamine group means an amine substituted with an aryl
- the alkylamine group means an amine substituted with an alkyl
- an arylamine group examples of these include a substituted or unsubstituted monoarylamine group, a substituted or unsubstituted diarylamine group, or a substituted or unsubstituted triarylamine group
- the aryl group in the arylamine group may be a monocyclic aryl group, and It may be a cyclic aryl group
- the arylamine group including two or more aryl groups may include a monocyclic aryl group, a polycyclic aryl group, or a monocyclic aryl group and a polycyclic aryl group at the same time.
- the aryl group in the arylamine group may be selected from the examples of
- the aryl group in the aryloxy group and the arylthioxy group is the same as the above-described aryl group, and specifically, the aryloxy group includes a phenoxy group, p-tolyloxy group, m-tolyloxy group, 3,5- Dimethyl-phenoxy group, 2,4,6-trimethylphenoxy group, p-tert-butylphenoxy group, 3-biphenyloxy group, 4-biphenyloxy group, 1-naphthyloxy group, 2-naphthyloxy group, 4 -Methyl-1-naphthyloxy group, 5-methyl-2-naphthyloxy group, 1-anthryloxy group, 2-anthryloxy group, 9-anthryloxy group, 1-phenanthryloxy group, 3-phenane and a toryloxy group, a 9-phenanthryloxy group, and the like, and the arylthioxy group includes, but is not limited to, a phenoxy group,
- examples of the halogen group include fluorine, chlorine, bromine or iodine.
- polycyclic aromatic derivative compound represented by [Formula A] according to the present invention may be any one selected from the following [Compound 1] to [Compound 267], and specific substituents can be clearly identified through this, but , The scope of [Formula A] according to the present invention is not limited thereby.
- an organic light emitting device comprising a first electrode, a second electrode, and one or more organic layers interposed between the first electrode and the second electrode, wherein the organic layer has the [Formula A] It may include at least one organic light emitting compound according to the present invention represented by.
- the organic light emitting device may have a structure including a first electrode and a second electrode and an organic material layer disposed therebetween, and the organic light emitting compound of [Formula A] according to the present invention It may be manufactured using a conventional device manufacturing method and material, except that it is used for the organic material layer of the device.
- the organic layer of the organic light emitting device according to the present invention may have a single layer structure, but may have a multilayer structure in which two or more organic layers are stacked.
- it may have a structure including a hole injection layer, a hole transport layer, a hole blocking layer, a light emitting layer, an electron blocking layer, an electron transport layer, an electron injection layer, and the like.
- the present invention is not limited thereto and may include a smaller number or a larger number of organic layers, and the organic material layer structure of the preferred organic light emitting device according to the present invention will be described in more detail in the Examples to be described later.
- the organic light emitting device includes an anode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode, and if necessary, may further include a hole injection layer between the anode and the hole transport layer, and also between the electron transport layer and the cathode It may further include an injection layer, in addition to that, it is also possible to further form an intermediate layer of one or two layers, a hole blocking layer or an electron blocking layer may be further formed, and an organic layer having various functions according to the characteristics of the device. may further include.
- the organic light emitting device is characterized in that it contains an anthracene derivative represented by the following [Formula C] as a host compound in the light emitting layer.
- R 21 to R 28 are the same as or different from each other, and are the same as defined for R 1 to R 5 of [Formula A].
- Ar 9 and Ar 10 are the same or different from each other, and each independently represents hydrogen, deuterium, a substituted or unsubstituted C 1 to C 30 alkyl group, a substituted or unsubstituted C 6 to C 50 aryl group, a substituted or unsubstituted A alkenyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms, a substituted or unsubstituted cycloalkenyl group having 5 to 30 carbon atoms, a substituted or unsubstituted Unsubstituted heteroaryl group having 2 to 50 carbon atoms, substituted or unsubstituted heterocycloalkyl group having 2 to 30 carbon atoms, substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, substituted or un
- L 13 is a single bond, or any one selected from a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms, preferably a single bond, or It may be a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, k is an integer of 1 to 3, but when k is 2 or more, each L 13 is the same as or different from each other.
- Ar 9 of the [Formula C] is characterized in that it is a substituent represented by the following [Formula C-1].
- R 31 to R 35 are the same or different, respectively, and are the same as defined for R 1 to R 5 of [Formula A], and may form a saturated or unsaturated ring by combining with neighboring substituents.
- the [Formula C] employed in the organic light emitting device according to the present invention may be any one specifically selected from the following [Formula C1] to [Formula C48].
- an anode is formed by coating a material for an anode electrode on a substrate.
- a substrate used in a conventional organic light emitting device is used, and an organic substrate or a transparent plastic substrate excellent in transparency, surface smoothness, handling and water resistance is preferable.
- a material for the anode electrode indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO 2 ), zinc oxide (ZnO), etc., which are transparent and have excellent conductivity, are used.
- a hole injection layer is formed by vacuum thermal evaporation or spin coating of a hole injection layer material on the anode electrode, and then a hole transport layer is formed by vacuum thermal evaporation or spin coating of a hole transport layer material on the hole injection layer.
- the hole injection layer material may be used without particular limitation as long as it is commonly used in the art, and as a specific example, 2-TNATA [4,4',4"-tris(2-naphthylphenyl-phenylamino)-triphenylamine] , NPD[N,N'-di(1-naphthyl)-N,N'-diphenylbenzidine)], TPD[N,N'-diphenyl-N,N'-bis(3-methylphenyl)-1,1'- biphenyl-4,4'-diamine], DNTPD[N,N'-diphenyl-N,N'-bis-[4-(phenyl-m-tolyl-amino)-phenyl]-biphenyl-4,4'-diamine ] can be used.
- the hole transport layer material is also not particularly limited as long as it is commonly used in the art, for example, N,N'-bis(3-methylphenyl)-N,N'-diphenyl-[1,1- Biphenyl]-4,4'-diamine (TPD) or N,N'-di(naphthalen-1-yl)-N,N'-diphenylbenzidine (?-NPD), etc. can be used.
- TPD N,N'-bis(3-methylphenyl)-N,N'-diphenyl-[1,1- Biphenyl]-4,4'-diamine
- ?-NPD N,N'-di(naphthalen-1-yl)-N,N'-diphenylbenzidine
- a hole auxiliary layer and a light emitting layer are sequentially stacked on the hole transport layer, and a hole blocking layer is selectively deposited on the light emitting layer by a vacuum deposition method or a spin coating method to form a thin film.
- the hole blocking layer serves to prevent this problem by using a material having a very low HOMO (Highest Occupied Molecular Orbital) level because the lifetime and efficiency of the device are reduced when holes are introduced into the cathode through the organic light emitting layer.
- the hole blocking material used is not particularly limited, but has an electron transport ability and has an ionization potential higher than that of a light emitting compound, and typically BAlq, BCP, TPBI, etc. may be used.
- Materials used for the hole blocking layer include, but are not limited to, BAlq, BCP, Bphen, TPBI, NTAZ, BeBq 2 , OXD-7, Liq, and the like.
- the present invention by forming an electron injection layer after depositing an electron transport layer on the hole blocking layer through a vacuum deposition method or a spin coating method, and vacuum thermal evaporation of a metal for forming a cathode on the electron injection layer to form a cathode electrode An organic light emitting diode according to an embodiment is completed.
- lithium (Li), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver ( Mg-Ag) may be used, and in order to obtain a top light emitting device, a transmissive cathode using ITO or IZO may be used.
- the electron transport layer material serves to stably transport electrons injected from the cathode, and a known electron transport material may be used.
- known electron transport materials include quinoline derivatives, in particular tris(8-quinolinolate)aluminum (Alq3), TAZ, Balq, beryllium bis(benzoquinolin-10- Materials such as olate: Bebq2), ADN, and oxadiazole derivatives PBD, BMD, BND, etc. may be used.
- each of the organic layers may be formed by a monomolecular deposition method or a solution process, wherein the deposition method evaporates a material used as a material for forming each layer through heating in a vacuum or low pressure state. It refers to a method of forming a thin film, and the solution process mixes a material used as a material for forming each layer with a solvent, and uses it inkjet printing, roll-to-roll coating, screen printing, spray coating, dip coating, spin coating It refers to a method of forming a thin film through a method such as, for example.
- the organic light emitting diode according to the present invention can be used in a device selected from a flat panel display device, a flexible display device, a device for flat panel lighting of a single color or a white color, and a device for a flexible lighting device of a single color or a white color.
- the light emitting area of the ITO glass was patterned to have a size of 2 mm ⁇ 2 mm and then washed. After the ITO glass was mounted in a vacuum chamber and the base pressure was set to 1 ⁇ 10 -7 torr, a film was formed on the ITO in order of DNTPD (700 ⁇ ) and [Formula H] (250 ⁇ ).
- the light emitting layer is formed by mixing the host (BH1) described below and the compound (3 wt%) of the present invention (250 ⁇ ) and then forming [Formula E-1] and [Formula E-2] as an electron transport layer 1
- An organic light emitting diode was manufactured by depositing a film of 300 ⁇ at a ratio of :1 and [Formula E-1] as an electron injection layer in the order of 5 ⁇ and Al (1000 ⁇ ). The emission characteristics of the organic light emitting device were measured at 0.4 mA.
- An organic light emitting device was manufactured in the same manner except that [BD1] and [BD2] were used instead of the compounds used in Examples 1 to 5, and the light emitting characteristic of the organic light emitting device was measured at 0.4 mA.
- the structures of [BD1] and [BD2] are as follows.
- the organic light emitting device employing the compound according to the present invention has higher luminous efficiency compared to the devices employing the compounds of Comparative Examples BD1 and BD2, thereby realizing a highly efficient organic light emitting device.
- the polycyclic aromatic derivative compound according to the present invention can be employed in the organic layer in the device to realize a high-efficiency organic light emitting device, so that various display devices such as flat panel displays and flexible displays, monochromatic or white flat panel lighting, monochromatic or white flexible lighting, etc. It can be usefully used industrially for lighting devices of
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Abstract
Description
| 구분 | 도판트 | 구동전압 (V) | 외부양자효율 (%) |
| 실시예 1 | 화합물 25 | 3.8 | 7.2 |
| 실시예 2 | 화합물 42 | 3.8 | 7.1 |
| 실시예 3 | 화합물 55 | 3.8 | 6.9 |
| 실시예 4 | 화합물 86 | 3.8 | 7.0 |
| 실시예 5 | 화합물 92 | 3.8 | 6.8 |
| 비교예 1 | BD1 | 3.8 | 5.3 |
| 비교예 2 | BD2 | 3.8 | 6.2 |
Claims (10)
- 하기 [화학식 A]로 표시되는 다환 방향족 유도체 화합물:[화학식 A]상기 [화학식 A]에서,Q 1 내지 Q 5는 서로 동일하거나 상이하고, 각각 독립적으로 치환 또는 비치환된 탄소수 6 내지 50의 방향족 탄화수소 고리이거나, 또는 치환 또는 비치환된 탄소수 2 내지 50의 방향족 헤테로고리이며,X는 B, P, P=O 및 P=S 중에서 선택되는 어느 하나이고 (상기 복수의 X는 서로 동일하거나 상이함), Y는 N-R 1, CR 2R 3, O, S, Se 및 SiR 4R 5 중에서 선택되는 어느 하나이며 (복수의 Y는 서로 동일하거나 상이함),상기 R 1 내지 R 5는 서로 동일하거나 상이하고, 각각 독립적으로 수소, 중수소, 치환 또는 비치환된 탄소수 1 내지 30의 알킬기, 치환 또는 비치환된 탄소수 6 내지 50의 아릴기, 치환 또는 비치환된 탄소수 3 내지 30의 시클로알킬기, 치환 또는 비치환된 탄소수 2 내지 50의 헤테로아릴기, 치환 또는 비치환된 탄소수 1 내지 30의 알콕시기, 치환 또는 비치환된 탄소수 6 내지 30의 아릴옥시기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬티옥시기, 치환 또는 비치환된 탄소수 5 내지 30의 아릴티옥시기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬아민기, 치환 또는 비치환된 탄소수 5 내지 30의 아릴아민기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬실릴기, 치환 또는 비치환된 탄소수 5 내지 30의 아릴실릴기, 니트로기, 시아노기 및 할로겐기 중에서 선택되는 어느 하나이며,상기 R 1 내지 R 5은 각각 상기 Q 1 내지 Q 5 고리 중의 어느 하나와 결합하여 지환족 또는 방향족의 단일환 또는 다환 고리를 추가적으로 형성할 수 있고,상기 R 2와 R 3 및 R 4와 R 5는 각각 서로 연결되어 지환족 또는 방향족의 단일환 또는 다환고리를 추가적으로 형성할 수 있으며,상기 Q 1 내지 Q 5 중에서,(i) 상기 Q 1, Q 5 또는 Q 1 및 Q 5 모두 각각 하기 [구조식 B-1] 내지 [구조식 B-3] 중에서 선택되는 어느 하나의 구조식인 것을 특징으로 하거나;[구조식 B-1] [구조식 B-2] [구조식 B-3](ii) Q 3이 하기 [구조식 B-4] 내지 [구조식 B-6] 중에서 선택되는 어느 하나의 구조식인 것을 특징으로 하거나;[구조식 B-4] [구조식 B-5] [구조식 B-6](iii) Q 1, Q 5 또는 Q 1 및 Q 5가 각각 상기 [구조식 B-1] 내지 [구조식 B-3] 중에서 선택되는 어느 하나의 구조식이면서, Q 3이 상기 [구조식 B-4] 내지 [구조식 B-6] 중에서 선택되는 어느 하나의 구조식인 것을 특징으로 하고;상기 [구조식 B-1] 내지 [구조식 B-6]에서,Y는 N-R 1, CR 2R 3, O, S, Se 및 SiR 4R 5 중에서 선택되는 어느 하나이고 (복수의 Y는 서로 동일하거나 상이하며, 상기 R 1 내지 R 5는 [화학식 A]에서의 정의와 동일함),Q 6는 치환 또는 비치환된 탄소수 6 내지 50의 방향족 탄화수소 고리이거나, 또는 치환 또는 비치환된 탄소수 2 내지 50의 방향족 헤테로고리이며,R은 수소, 중수소, 치환 또는 비치환된 탄소수 1 내지 30의 알킬기, 치환 또는 비치환된 탄소수 6 내지 50의 아릴기, 치환 또는 비치환된 탄소수 3 내지 30의 시클로알킬기, 치환 또는 비치환된 탄소수 2 내지 50의 헤테로아릴기, 치환 또는 비치환된 탄소수 1 내지 30의 알콕시기, 치환 또는 비치환된 탄소수 6 내지 30의 아릴옥시기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬티옥시기, 치환 또는 비치환된 탄소수 5 내지 30의 아릴티옥시기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬아민기, 치환 또는 비치환된 탄소수 5 내지 30의 아릴아민기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬실릴기, 치환 또는 비치환된 탄소수 5 내지 30의 아릴실릴기, 니트로기, 시아노기 및 할로겐기 중에서 선택되는 어느 하나이며 (복수의 R은 서로 동일하거나 상이함),상기 R은 서로 또는 상기 Q 1 내지 Q 5 고리 중의 어느 하나와 결합하여 지환족 또는 방향족의 단일환 또는 다환 고리를 추가적으로 형성할 수 있고,'*'는 Q 1, Q 3 및 Q 5가 각각 [구조식 B-1] 내지 [구조식 B-6] 중의 어느 하나로 대체되어 각각 [화학식 A] 구조에 결합하는 부분이다.
- 제1항에 있어서,상기 Q 1 내지 Q 6은 서로 동일하거나 상이하고, 각각 독립적으로 하기 [구조식 Q-1]로 표시되는 것을 특징으로 하는 유기발광 화합물:[구조식 Q-1]상기 [구조식 Q-1]에서,Z는 CR 또는 N이고, 상기 R은 수소, 중수소, 치환 또는 비치환된 탄소수 1 내지 30의 알킬기, 치환 또는 비치환된 탄소수 6 내지 50의 아릴기, 치환 또는 비치환된 탄소수 3 내지 30의 시클로알킬기, 치환 또는 비치환된 탄소수 2 내지 50의 헤테로아릴기, 치환 또는 비치환된 탄소수 1 내지 30의 알콕시기, 치환 또는 비치환된 탄소수 6 내지 30의 아릴옥시기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬티옥시기, 치환 또는 비치환된 탄소수 5 내지 30의 아릴티옥시기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬아민기, 치환 또는 비치환된 탄소수 5 내지 30의 아릴아민기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬실릴기, 치환 또는 비치환된 탄소수 5 내지 30의 아릴실릴기, 니트로기, 시아노기 및 할로겐기 중에서 선택되는 어느 하나이며 (복수의 Z 및 R은 서로 동일하거나 상이함),상기 복수의 R은 서로 결합하거나 인접한 치환기와 연결되어 지환족, 방향족의 단일환 또는 다환 고리를 형성할 수 있으며, 상기 형성된 지환족, 방향족의 단일환 또는 다환 고리의 탄소원자는 N, S 및 O 중에서 선택되는 어느 하나 이상의 헤테로원자로 치환될 수 있으며,복수의 Z 중 상기 [화학식 A]에 결합하는 부위는 C-H인 경우로 정의되지 않는다.
- 제1 전극, 상기 제1 전극에 대향된 제2 전극 및 상기 제1 전극과 제2 전극 사이에 개재된 유기층을 포함하고,상기 유기층이 제1항에 따른 [화학식 A]로 표시되는 화합물을 1 종 이상 포함하는 유기발광소자.
- 제4항에 있어서,상기 유기층은 전자주입층, 전자수송층, 정공주입층, 정공수송층, 전자저지층, 정공저지층 및 발광층 중 1층 이상을 포함하고,상기 층들 중 1층 이상이 상기 [화학식 A]로 표시되는 유기발광 화합물을 포함하는 것을 특징으로 하는 유기발광소자.
- 제5항에 있어서,상기 발광층은 하기 [화학식 C]로 표시되는 안트라센 유도체를 호스트 화합물로 포함하는 것을 특징으로 하는 유기발광소자:[화학식 C]상기 [화학식 C]에서,R 21 내지 R 28은 각각 동일하거나 상이하며, 상기 제1항 [화학식 A]의 R 1 내지 R 5에서 정의된 바와 동일하고,Ar 9 및 Ar 10은 각각 서로 동일하거나 상이하고, 서로 독립적으로 수소, 중수소, 치환 또는 비치환된 탄소수 1 내지 30의 알킬기, 치환 또는 비치환된 탄소수 6 내지 50의 아릴기, 치환 또는 비치환된 탄소수 2 내지 30의 알케닐기, 치환 또는 비치환된 탄소수 2 내지 20의 알키닐기, 치환 또는 비치환된 탄소수 3 내지 30의 시클로알킬기, 치환 또는 비치환된 탄소수 5 내지 30의 시클로알케닐기, 치환 또는 비치환된 탄소수 2 내지 50의 헤테로아릴기, 치환 또는 비치환된 탄소수 2 내지 30의 헤테로시클로알킬기, 치환 또는 비치환된 탄소수 1 내지 30의 알콕시기, 치환 또는 비치환된 탄소수 6 내지 30의 아릴옥시기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬티옥시기, 치환 또는 비치환된 탄소수6내지 30의 아릴티옥시기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬아민기, 치환 또는 비치환된 탄소수6내지 30의 아릴아민기, 치환 또는 비치환된 탄소수 1 내지 30의 알킬실릴기 및 치환 또는 비치환된 탄소수 6 내지 30의 아릴실릴기 중에서 선택되는 어느 하나이며L 13은 단일결합이거나, 또는 치환 또는 비치환된 탄소수 6 내지 20의 아릴렌기, 또는 치환 또는 비치환된 탄소수 2 내지 20의 헤테로아릴렌기 중에서 선택되는 어느 하나이고,k는 1 내지 3의 정수이되, 상기 k가 2 이상인 경우에 각각의 L 13은 서로 동일하거나 상이하다.
- 제5항에 있어서,상기 각각의 층중에서 선택된 하나 이상의 층은 증착공정 또는 용액공정에 의해 형성되는 것을 특징으로 하는 유기발광소자.
- 제4항에 있어서,상기 유기발광소자는 평판 디스플레이 장치; 플렉시블 디스플레이 장치; 단색 또는 백색의 평판 조명용 장치; 및 단색 또는 백색의 플렉시블 조명용 장치; 중에서 선택되는 어느 하나에 사용되는 것을 특징으로 하는 유기발광소자.
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| US17/794,847 US20230287010A1 (en) | 2020-01-23 | 2021-01-25 | Polycyclic aromatic derivative compound and organic light-emitting device using same |
| EP21744153.4A EP4108667B1 (en) | 2020-01-23 | 2021-01-25 | Polycyclic aromatic derivative compound and organic light-emitting device using same |
| CN202180015648.4A CN115135660B (zh) | 2020-01-23 | 2021-01-25 | 多环芳族衍生物化合物及使用其的有机发光装置 |
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| JP2022032441A (ja) * | 2020-08-12 | 2022-02-25 | 学校法人関西学院 | 多環芳香族化合物 |
| CN114478602A (zh) * | 2022-02-24 | 2022-05-13 | 中国科学院长春应用化学研究所 | 含有萘环和两个硼原子的稠环化合物及有机电致发光器件 |
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| CN113795498B (zh) * | 2019-05-24 | 2024-12-17 | 材料科学有限公司 | 有机化合物及包含其的有机电致发光元件 |
| CN114144420B (zh) * | 2019-07-23 | 2024-03-26 | Sfc株式会社 | 有机电致发光化合物和有机电致发光器件 |
| KR102866751B1 (ko) * | 2020-06-09 | 2025-10-01 | 삼성디스플레이 주식회사 | 축합환 화합물을 포함한 발광 소자 및 상기 발광 소자를 포함한 전자 장치 |
| JP7573833B2 (ja) * | 2020-07-20 | 2024-10-28 | 学校法人関西学院 | 多環芳香族化合物 |
| JP7631068B2 (ja) * | 2020-08-13 | 2025-02-18 | 三星電子株式会社 | 縮合環化合物、組成物、有機電界発光素子用材料、電子素子および有機電界発光素子 |
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| CN115135660B (zh) | 2026-01-09 |
| EP4108667B1 (en) | 2025-08-13 |
| US20230287010A1 (en) | 2023-09-14 |
| JP7576626B2 (ja) | 2024-10-31 |
| KR20210095587A (ko) | 2021-08-02 |
| EP4108667A4 (en) | 2024-02-28 |
| CN115135660A (zh) | 2022-09-30 |
| EP4108667A1 (en) | 2022-12-28 |
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