TWI322141B - Host material for blue oled and white light emitting device utilizing the same - Google Patents
Host material for blue oled and white light emitting device utilizing the same Download PDFInfo
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- TWI322141B TWI322141B TW096131802A TW96131802A TWI322141B TW I322141 B TWI322141 B TW I322141B TW 096131802 A TW096131802 A TW 096131802A TW 96131802 A TW96131802 A TW 96131802A TW I322141 B TWI322141 B TW I322141B
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- Prior art keywords
- emitting diode
- organic light
- phenyl
- bis
- layer
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- 239000000463 material Substances 0.000 title claims description 34
- -1 do not Chemical compound 0.000 claims description 21
- 229910052757 nitrogen Inorganic materials 0.000 claims description 18
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 12
- 125000003118 aryl group Chemical group 0.000 claims description 11
- 239000001257 hydrogen Substances 0.000 claims description 8
- 125000006615 aromatic heterocyclic group Chemical group 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 6
- 239000007983 Tris buffer Substances 0.000 claims description 6
- 239000002019 doping agent Substances 0.000 claims description 6
- 230000005525 hole transport Effects 0.000 claims description 6
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 5
- GEQBRULPNIVQPP-UHFFFAOYSA-N 2-[3,5-bis(1-phenylbenzimidazol-2-yl)phenyl]-1-phenylbenzimidazole Chemical compound C1=CC=CC=C1N1C2=CC=CC=C2N=C1C1=CC(C=2N(C3=CC=CC=C3N=2)C=2C=CC=CC=2)=CC(C=2N(C3=CC=CC=C3N=2)C=2C=CC=CC=2)=C1 GEQBRULPNIVQPP-UHFFFAOYSA-N 0.000 claims description 4
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- 150000004982 aromatic amines Chemical class 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 4
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 4
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 3
- 239000004305 biphenyl Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 229910001887 tin oxide Inorganic materials 0.000 claims description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 2
- SJCKRGFTWFGHGZ-UHFFFAOYSA-N magnesium silver Chemical compound [Mg].[Ag] SJCKRGFTWFGHGZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 238000001465 metallisation Methods 0.000 claims description 2
- 238000006467 substitution reaction Methods 0.000 claims description 2
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 229910000838 Al alloy Inorganic materials 0.000 claims 3
- 229910052782 aluminium Inorganic materials 0.000 claims 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 3
- WXAIEIRYBSKHDP-UHFFFAOYSA-N 4-phenyl-n-(4-phenylphenyl)-n-[4-[4-(4-phenyl-n-(4-phenylphenyl)anilino)phenyl]phenyl]aniline Chemical compound C1=CC=CC=C1C1=CC=C(N(C=2C=CC(=CC=2)C=2C=CC=CC=2)C=2C=CC(=CC=2)C=2C=CC(=CC=2)N(C=2C=CC(=CC=2)C=2C=CC=CC=2)C=2C=CC(=CC=2)C=2C=CC=CC=2)C=C1 WXAIEIRYBSKHDP-UHFFFAOYSA-N 0.000 claims 2
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 claims 2
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 claims 2
- 125000002971 oxazolyl group Chemical group 0.000 claims 2
- OMQWBTOTNRMKAK-UHFFFAOYSA-N 2-methylquinolin-3-ol Chemical compound C1=CC=C2C=C(O)C(C)=NC2=C1 OMQWBTOTNRMKAK-UHFFFAOYSA-N 0.000 claims 1
- DHDHJYNTEFLIHY-UHFFFAOYSA-N 4,7-diphenyl-1,10-phenanthroline Chemical compound C1=CC=CC=C1C1=CC=NC2=C1C=CC1=C(C=3C=CC=CC=3)C=CN=C21 DHDHJYNTEFLIHY-UHFFFAOYSA-N 0.000 claims 1
- 239000005725 8-Hydroxyquinoline Substances 0.000 claims 1
- DVNOWTJCOPZGQA-UHFFFAOYSA-N 9-[3,5-di(carbazol-9-yl)phenyl]carbazole Chemical compound C12=CC=CC=C2C2=CC=CC=C2N1C1=CC(N2C3=CC=CC=C3C3=CC=CC=C32)=CC(N2C3=CC=CC=C3C3=CC=CC=C32)=C1 DVNOWTJCOPZGQA-UHFFFAOYSA-N 0.000 claims 1
- 229910000846 In alloy Inorganic materials 0.000 claims 1
- OAKKNBXUNMRKRZ-UHFFFAOYSA-N SC1=NC2=C3N=C(C=C(C3=CC=C2C(=C1)C1=CC=CC=C1)C1=CC=CC=C1)S Chemical compound SC1=NC2=C3N=C(C=C(C3=CC=C2C(=C1)C1=CC=CC=C1)C1=CC=CC=C1)S OAKKNBXUNMRKRZ-UHFFFAOYSA-N 0.000 claims 1
- JHYLKGDXMUDNEO-UHFFFAOYSA-N [Mg].[In] Chemical compound [Mg].[In] JHYLKGDXMUDNEO-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 150000001335 aliphatic alkanes Chemical class 0.000 claims 1
- 125000006267 biphenyl group Chemical group 0.000 claims 1
- BEQNOZDXPONEMR-UHFFFAOYSA-N cadmium;oxotin Chemical compound [Cd].[Sn]=O BEQNOZDXPONEMR-UHFFFAOYSA-N 0.000 claims 1
- DIOQZVSQGTUSAI-NJFSPNSNSA-N decane Chemical compound CCCCCCCCC[14CH3] DIOQZVSQGTUSAI-NJFSPNSNSA-N 0.000 claims 1
- JAONJTDQXUSBGG-UHFFFAOYSA-N dialuminum;dizinc;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Zn+2].[Zn+2] JAONJTDQXUSBGG-UHFFFAOYSA-N 0.000 claims 1
- 150000004985 diamines Chemical class 0.000 claims 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 1
- 229910052976 metal sulfide Inorganic materials 0.000 claims 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- DIOQZVSQGTUSAI-UHFFFAOYSA-N n-butylhexane Natural products CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 claims 1
- 150000002829 nitrogen Chemical class 0.000 claims 1
- 229960003540 oxyquinoline Drugs 0.000 claims 1
- YXVFYQXJAXKLAK-UHFFFAOYSA-N p-hydroxybiphenyl Natural products C1=CC(O)=CC=C1C1=CC=CC=C1 YXVFYQXJAXKLAK-UHFFFAOYSA-N 0.000 claims 1
- 125000001792 phenanthrenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C=CC12)* 0.000 claims 1
- 108091008695 photoreceptors Proteins 0.000 claims 1
- BPEVHDGLPIIAGH-UHFFFAOYSA-N ruthenium(3+) Chemical compound [Ru+3] BPEVHDGLPIIAGH-UHFFFAOYSA-N 0.000 claims 1
- 230000002000 scavenging effect Effects 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- XSVXWCZFSFKRDO-UHFFFAOYSA-N triphenyl-(3-triphenylsilylphenyl)silane Chemical compound C1=CC=CC=C1[Si](C=1C=C(C=CC=1)[Si](C=1C=CC=CC=1)(C=1C=CC=CC=1)C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 XSVXWCZFSFKRDO-UHFFFAOYSA-N 0.000 claims 1
- 239000012953 triphenylsulfonium Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 37
- 239000007787 solid Substances 0.000 description 17
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 13
- 125000000217 alkyl group Chemical group 0.000 description 12
- 238000001296 phosphorescence spectrum Methods 0.000 description 10
- 239000010408 film Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 101150041968 CDC13 gene Proteins 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 8
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 7
- 238000002371 ultraviolet--visible spectrum Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- MILUBEOXRNEUHS-UHFFFAOYSA-N iridium(3+) Chemical compound [Ir+3] MILUBEOXRNEUHS-UHFFFAOYSA-N 0.000 description 5
- 238000001819 mass spectrum Methods 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000000921 elemental analysis Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- MNJYZNVROSZZQC-UHFFFAOYSA-N (4-tert-butylphenyl)boronic acid Chemical compound CC(C)(C)C1=CC=C(B(O)O)C=C1 MNJYZNVROSZZQC-UHFFFAOYSA-N 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 3
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 150000004696 coordination complex Chemical class 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000012044 organic layer Substances 0.000 description 3
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 229910052707 ruthenium Inorganic materials 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 150000003852 triazoles Chemical class 0.000 description 3
- AWXGSYPUMWKTBR-UHFFFAOYSA-N 4-carbazol-9-yl-n,n-bis(4-carbazol-9-ylphenyl)aniline Chemical compound C12=CC=CC=C2C2=CC=CC=C2N1C1=CC=C(N(C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=C1 AWXGSYPUMWKTBR-UHFFFAOYSA-N 0.000 description 2
- VFUDMQLBKNMONU-UHFFFAOYSA-N 9-[4-(4-carbazol-9-ylphenyl)phenyl]carbazole Chemical group C12=CC=CC=C2C2=CC=CC=C2N1C1=CC=C(C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=C1 VFUDMQLBKNMONU-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 101000837344 Homo sapiens T-cell leukemia translocation-altered gene protein Proteins 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 102100028692 T-cell leukemia translocation-altered gene protein Human genes 0.000 description 2
- 238000004224 UV/Vis absorption spectrophotometry Methods 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 2
- 238000000295 emission spectrum Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000012280 lithium aluminium hydride Substances 0.000 description 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 description 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- DETFWTCLAIIJRZ-UHFFFAOYSA-N triphenyl-(4-triphenylsilylphenyl)silane Chemical compound C1=CC=CC=C1[Si](C=1C=CC(=CC=1)[Si](C=1C=CC=CC=1)(C=1C=CC=CC=1)C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 DETFWTCLAIIJRZ-UHFFFAOYSA-N 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- XUIURRYWQBBCCK-UHFFFAOYSA-N (3,5-dimethoxyphenyl)boronic acid Chemical group COC1=CC(OC)=CC(B(O)O)=C1 XUIURRYWQBBCCK-UHFFFAOYSA-N 0.000 description 1
- DJGHSJBYKIQHIK-UHFFFAOYSA-N (3,5-dimethylphenyl)boronic acid Chemical group CC1=CC(C)=CC(B(O)O)=C1 DJGHSJBYKIQHIK-UHFFFAOYSA-N 0.000 description 1
- XPEIJWZLPWNNOK-UHFFFAOYSA-N (4-phenylphenyl)boronic acid Chemical group C1=CC(B(O)O)=CC=C1C1=CC=CC=C1 XPEIJWZLPWNNOK-UHFFFAOYSA-N 0.000 description 1
- JCMVPOVHKWWBAU-UHFFFAOYSA-N 1,2-dichlorohydrazine Chemical compound ClNNCl JCMVPOVHKWWBAU-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- DIOURSRLPLXSNY-UHFFFAOYSA-N 2-[3,5-bis(4-phenyl-1h-benzimidazol-2-yl)phenyl]-4-phenyl-1h-benzimidazole Chemical compound C1=CC=CC=C1C1=CC=CC2=C1NC(C=1C=C(C=C(C=1)C=1NC3=C(C=4C=CC=CC=4)C=CC=C3N=1)C=1NC3=C(C=4C=CC=CC=4)C=CC=C3N=1)=N2 DIOURSRLPLXSNY-UHFFFAOYSA-N 0.000 description 1
- 125000004200 2-methoxyethyl group Chemical group [H]C([H])([H])OC([H])([H])C([H])([H])* 0.000 description 1
- KDOQMLIRFUVJNT-UHFFFAOYSA-N 4-n-naphthalen-2-yl-1-n,1-n-bis[4-(n-naphthalen-2-ylanilino)phenyl]-4-n-phenylbenzene-1,4-diamine Chemical compound C1=CC=CC=C1N(C=1C=C2C=CC=CC2=CC=1)C1=CC=C(N(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C3C=CC=CC3=CC=2)C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C3C=CC=CC3=CC=2)C=C1 KDOQMLIRFUVJNT-UHFFFAOYSA-N 0.000 description 1
- KOUSEDKXAVLFMB-UHFFFAOYSA-N 9,9,10,10-tetramethyl-2,3,6,7-tetrakis(4-phenylphenyl)anthracene Chemical compound C=1C=C(C=2C=CC=CC=2)C=CC=1C=1C=C2C(C)(C)C3=CC(C=4C=CC(=CC=4)C=4C=CC=CC=4)=C(C=4C=CC(=CC=4)C=4C=CC=CC=4)C=C3C(C)(C)C2=CC=1C(C=C1)=CC=C1C1=CC=CC=C1 KOUSEDKXAVLFMB-UHFFFAOYSA-N 0.000 description 1
- OCYZKRYUBMHJIC-UHFFFAOYSA-N C(CCCCCCCCC)C1(C2=CC=CC=C2C(C=2C=CC=CC12)(CCCCCCCCCC)CCCCCCCCCC)CCCCCCCCCC Chemical compound C(CCCCCCCCC)C1(C2=CC=CC=C2C(C=2C=CC=CC12)(CCCCCCCCCC)CCCCCCCCCC)CCCCCCCCCC OCYZKRYUBMHJIC-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- PSKWNYVWTYKUFD-UHFFFAOYSA-N FC(C=1C=C(C=C(C=1)C(F)(F)F)P(O)(O)=O)(F)F Chemical group FC(C=1C=C(C=C(C=1)C(F)(F)F)P(O)(O)=O)(F)F PSKWNYVWTYKUFD-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 101000964479 Homo sapiens Zinc finger and BTB domain-containing protein 18 Proteins 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 229910010084 LiAlH4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000006069 Suzuki reaction reaction Methods 0.000 description 1
- 102100040762 Zinc finger and BTB domain-containing protein 18 Human genes 0.000 description 1
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000001448 anilines Chemical class 0.000 description 1
- 125000002178 anthracenyl group Chemical group C1(=CC=CC2=CC3=CC=CC=C3C=C12)* 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- UFVXQDWNSAGPHN-UHFFFAOYSA-K bis[(2-methylquinolin-8-yl)oxy]-(4-phenylphenoxy)alumane Chemical compound [Al+3].C1=CC=C([O-])C2=NC(C)=CC=C21.C1=CC=C([O-])C2=NC(C)=CC=C21.C1=CC([O-])=CC=C1C1=CC=CC=C1 UFVXQDWNSAGPHN-UHFFFAOYSA-K 0.000 description 1
- 230000031709 bromination Effects 0.000 description 1
- 238000005893 bromination reaction Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical compound BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910000024 caesium carbonate Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000002541 furyl group Chemical group 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- JGJLWPGRMCADHB-UHFFFAOYSA-N hypobromite Inorganic materials Br[O-] JGJLWPGRMCADHB-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- VZYZZKOUCVXTOJ-UHFFFAOYSA-N n-[4-[4-(n-(9,9-dimethylfluoren-2-yl)anilino)phenyl]phenyl]-9,9-dimethyl-n-phenylfluoren-2-amine Chemical compound C1=C2C(C)(C)C3=CC=CC=C3C2=CC=C1N(C=1C=CC(=CC=1)C=1C=CC(=CC=1)N(C=1C=CC=CC=1)C=1C=C2C(C)(C)C3=CC=CC=C3C2=CC=1)C1=CC=CC=C1 VZYZZKOUCVXTOJ-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- YWQOABSVSYKDRJ-UHFFFAOYSA-N octadecoxyboronic acid Chemical compound CCCCCCCCCCCCCCCCCCOB(O)O YWQOABSVSYKDRJ-UHFFFAOYSA-N 0.000 description 1
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical compound C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 1
- CBHCDHNUZWWAPP-UHFFFAOYSA-N pecazine Chemical compound C1N(C)CCCC1CN1C2=CC=CC=C2SC2=CC=CC=C21 CBHCDHNUZWWAPP-UHFFFAOYSA-N 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- 229940031826 phenolate Drugs 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- SIOXPEMLGUPBBT-UHFFFAOYSA-M picolinate Chemical compound [O-]C(=O)C1=CC=CC=N1 SIOXPEMLGUPBBT-UHFFFAOYSA-M 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 150000004033 porphyrin derivatives Chemical class 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical class [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 125000004354 sulfur functional group Chemical group 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C13/00—Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
- C07C13/28—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
- C07C13/32—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings
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- C07C43/20—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
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- C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
- C07C2603/22—Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
- C07C2603/24—Anthracenes; Hydrogenated anthracenes
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Description
1322141 九、發明說明: 【發明所屬之技術領域】 本發明係關於一種有機發光二極體,更特別關於其發 ' 光層之主體材料。 【先前技#f】 磷光金屬錯合物最近已被使用作為有機發光二 ^ 極體的磷光摻雜物。在這些被用作有機發光二極體中 發光層的金屬錯合物中,由於電子組態具有強的自旋 -軌域耦合,使得環金屬化的銥金屬錯合物引起最廣 泛的研究。由於自旋-軌域耦合造成單重及三重激發 態的混成,因此縮短了三重態的生命期而提高磷光效 率。此外發現利用掺雜(doping)的方式可以提高元件 的效率,因此採取將磷光物質掺雜在主體材料的方 式,而主體材料逐漸變成研究的重點,在之前的文獻 報導藍色磷光的主體材料都有能隙不夠大,分子量太 小造成熱穩定性不夠的問題。如Baldo等人發表的論 文 A/fliwre 1998,395, 151、Adachi 等人發表 的文獻 J. Appl. Phys. 2001, P0, 4058、Granoth 等人 發表的文獻 J· C/zem. 1976, 4·/,3682、Holmes 等 人發表的文獻 尸2003,S3,3818、
Granoth 等人發表的文獻 */· Org. C/zem. 1976,47,3682。 【發明内容】 0765-A22323TWF(N2);hsuhuche 5 1322141
本發明提供一種主體材料,其結構式如下:
(R3)n -(R3)n
;其中&為(^.8 之烷基;每一 R2各自獨立,係擇自氫或CN8之烷基;Αγ 係擇自C5_14之芳香環基或芳香雜環基;R3係擇自C5_14之 芳香環基或芳香雜環基、之烷基、C5_8之環烷基、Cm 之氟化烷基、或Cw之烷氧基;以及η係擇自MO之整數。 本發明亦提供一種藍光有機發光二極體,包括陽極; 電洞傳輸層,位於陽極上;電子阻擋層,位於電洞傳輸層 上;發光層;電洞阻擋層,位於發光層上;電子傳輸層, 位於電洞阻擋層上;以及陰極;其中發光層包括上述之主 體材料,以及掺質。 本發明更提供一種白光發光裝置,包括上述之藍光有 機發光二極體;紅光有機發光二極體;以及綠光有機發光 二極體。 【實施方式】 本發明提供一種藍光之有機發光二極體,其發光層之 主體材料具有高能隙(>4.OeV)及高熱穩定性等特性。應用 此主體材料製備的有機發光二極體具有高亮度、高外部量 子效率、高電流效率及優異的CIE座標。 此主體材料具有結構式如式1。 0765-A22323TWF(N2);hsuhuche 6 1322141
上述R〗為Cw之烷基;每一 112各自獨立,係擇自氫 或CN8之烷基;Ar係擇自C5_14之芳香環基或芳香雜環基; R3係擇自C5_14之芳香環基或芳香雜環基、(:丨_8之烷基、C5_8 之環烷基、CN8之氟化烷基、或Cw之烷氧基;η係擇自 • 1-10之整數。
上述主體材料之合成方式係先以氫化鋁鋰(LiAlH4,簡 稱 LAH)搭配雙(2-烧氧基乙基)醚(bis (2-alkoxyethyl) ether) 烷化具有不同取代基R2之蒽後,形成9,9,10,10-四烷基 -9,10-二氫蒽如式2。式2中,111係擇自(:1_8之烷基。112 為氫或推電子基如CN8之烷基。
接著溴化上述之9,9,10,10-四烷基-9,10-二氫蒽形成 2,3,6,7-四溴基-9,9,10,10-四烷基-9,10-二氫蒽如式3。
最後利用芳香基之硼酸化物與上述之2,3,6,7-四溴基 0765-A22323TWF(N2);hsuhuche 7 1322141 -9,9,10,10-四烧基-9,10-二氫蒽進行Suzuki偶合反應,形成 ' 2,3,6,7-四芳香基-9,9,10,10-四烷基-9,10-二氫蒽如式4。芳 香基Ar可為C5_14之芳香環基如苯基、萘基、蒽基、或菲 基等官能基,或芳香雜環基如呋喃基、吡咯基、噻吩基、 0塞0坐基、味α坐基、°比σ南基、°比咬基、°密σ定基、°引α朵基、或 嘌呤基等官能基。R3係Ar上的取代基,可為C5_14之芳香 環基或芳香雜環基、之烷基、C5_8之環烷基、C!_8之氟 化烷基、或CN8之烷氧基。η為R3於Ar上的取代數目, 讎可為1-10之整數。
式1之2,3,6,7-四芳香基-9,9,10,10-四烷基-9,10-二氫蒽 可作為藍光有機發光二極體(簡稱OLED)中發光層的主體 材料。在本發明一實施例中,OLED係一多層結構如第1 圖所示。其形成方式首先將陽極12形成於玻璃基板11 • 上,以濕式蝕刻或電漿清洗後,將電洞傳輸層(hole transfer layer,簡稱HTL)13蒸鍍或旋塗於陽極12上, 將電子阻擔層(electron Mocking layer,簡稱 EBL) 14 蒸 鍍或旋塗於HTL 13上,將發光層15蒸鍍或旋塗於EBL 14 上,將電洞阻擔層(hole blocking layer,簡稱 HBL) 16 蒸鍍或旋塗於發光層15上,將電子傳導層(electron transfer layer,簡稱ETL)17蒸鍍或旋塗於HBL 16上, 最後再將陰極18真空鍍膜於ETL 17上。 0765-A22323TWF(N2);hsuhuche 8 1322141
陽極12之厚度約為80 nm,其材料可為銦錫氧化物 (ιτο)、銦鋅氧化物(ιζο)、|呂鋅氧化物(AZ〇)、録錫氧化物 (CTO)、氧化錫(Sn〇2)、或氧化鋅(Zn〇)等透明導電材料。 HTL 13之厚度約為30至50 nm之間,其材料可為 N,N,-雙萘基-n,N,-雙苯基-l,i,_雙苯基n-聯苯基_4,4,-二胺(N,N’-bis(l-naphyl)-N,N,-diphenyl-l,l,-biphenyl-4,4,-diamine ’ 簡稱 NPB)、N,N-二曱基 n,N-雙(3-曱基笨基)-1,1- 聯本基-4,4-二胺(]^,]^-(1丨卩1161171-1^,]^-1^5(3-11^>^11611>?1)- l,l-biphenyl-4,4-diamine,簡稱 tpd)、4,-咔唑基-9-基-聯 本基-4-基)-备基-1-基-苯基胺(4'-carbazol-9-yl-biphenyl-4· yl)-naphthalen-l-yl-phenyl-amine,簡稱 NCB)、N,N,-:# 基-9-基-4,N’·二苯基-聯苯基-4,4’-二胺(!^,1^’-<11-phenanthren-9-yl-4,N-diphenyl-biphenyl-4,4’-diamine,簡稱 PPB)、雙(4-Ν,Ν·二乙基胺基-2-甲基苯基)-4-曱基苯基甲 烧(bis(4-N,N-diethylamino-2-methylphenyl)-4-methylphenyl methane,簡稱 MPMP)、3,3,-二甲基-N,N,N,,N,-四-m-曱苯 基聯苯基-4,4’-二胺(3,3’-dimethyl,N,N,N,N -tetra-m-tolyl-biphenyl-4,4'-diamine,簡稱 HMTPD)、三-(4-咔唑基-9-基-苯基)-胺(Tris-(4-carbazol-9-yl-phenyl)-amine ,簡稱 TCTA)、或其他合適之苯胺類化合物。 EBL 14之厚度約為20至30 nm之間,其材料可為Ν,Ν'-二味哇基-3,5-苯(N,N'-dicarbazolyl-3,5-benzene,簡稱 mCP)、4, 4’-N,N’-二咔唑基聯苯(4,4f-N,Nf-dicarbazole-biphenyl,簡稱 CBP)、1,4-二味嗤基 9-基-苯(l,4-di-carbazol-0765-A22323TWF(N2);hsuhuche 9 1322141 • 9-yl-benzene,簡稱 CCP)、或 1,3,5-三(N-味0坐基)苯 r (l,3,5-tris(N-carbazolyl)benzene,簡稱 TCB)。 發光層15之厚度約為30至40 nm之間’其主體材料 為式1之2,3,6,7-四芳香基-9,9,10,10-四烷基-9,10-二氫蒽, 而掺質可為锇(0s)、銥(Ir)、鉑(Pt)、銪(Eu)、釕(Ru)等金 屬錯合物,其中以銀之金屬錯合物的發光範圍和效率最 好,而其配位基則是含氮之雜環化合物。在一實施例中, 銥金屬錯合物為雙-[(4,6-(二氟苯基)-π比啶基 β -N,C2,)-5-(吡啶基-2-基)-1氫化三唑銥(III)化合物 (iridium(III) bis[(4,6-difluorophenyl)-pyridinato-N,C2,]-5-(pyridine,2-yl)-lH-triazolate,簡稱 FIrpytz)、雙[(4,6-二 氟苯基)-D比咬基-N,C ’ ]吼啶羧酸銀(III)化合物(iridium(III) bis[(4,6-difluorophenyl)-pyridinato-N,C ]picolinate » 簡稱 Flrpic)、雙[(4,6-二氟苯基)-° 比咬基-N,C’]-5-( °比咬基-2-基)-1-氫化四唑基鉉(III)化合物(iridium(III) bis[(4,6-difluorophenyl)-pyridinato-N,C ] -5-(pyridine-2-yl)-lH-tetrazolate,簡稱 FIrN4)、雙[(4,6-二氟苯基)-σ比咬 基-N,C’]-四(1- D比嗤)棚化銥(III)(iridium(III) bis[(4,6-difluorophenyl)-pyridinato-N,C ] tetrakis(l-pyrazoyl)borate ’簡稱FIr6)、或三(1-苯基-3-曱基-(苯并咪 唑基-2-亞基-C,C’-銥(III)化合物(iridium(III) tris(l-phenyl-3-methyl-benzoimidazolin-2-ylidene-C,C ),簡 稱Ir(pmb)3)。上述主體材料與掺質之體積比約為95:5至 90:10之間。 0765-A22323TWF(N2);hsuhuche 10 1322141 ; HBL 16之厚度約為10至15 nm之間,其材料可為 1.3.5- 三(苯基 -2-苯并咪唑基)-苯 (l,3,5-tris(phenyl-2-benzimidazolyl)-benzene,簡稱 TPBI)、 2, 9-二甲基-4,7-二苯基-1, 10-菲啉(2, 9-dimethyl-4,7,diphenyl-l,10-phenanthroline,簡稱 BCP)、 雙(2·曱基-8-經基0i·琳)-4-苯基盼基|呂(aluminium (III) bis(2-methyl-8-quninolinato)-4-phenylphenolate ,簡稱 BAlq)、雙(2-曱基-8-經基噎琳)-盼基銘(aluminium (III) bis(2-methyl-8-quninolinato)-phenolate,簡稱 PAlq)、雙(2-曱基-8-經基啥琳)-三苯基石夕氧化銘(aluminium (III) bis(2-methyl-8-quninolinato)-triphenylsilanyloxy ,簡稱 SAlq)、或 1,4-雙(三苯基矽烷)苯(l,4-bis(triphenylsilyl) benzene,簡稱 UGH2)。 ETL 17之厚度約為30至50nm,其材料可為1,3,5-三 (苯基 -2- 苯并 咪唑基)-苯 (l,3,5-tris(phenyl,2-benzimidazolyl)-benzene,簡稱 TPBI)、 4-萘基-1-基-3,5-二苯基-4-[l,2,4]:〇^(4-Naphthalen-l-yl_ 3.5- diphenyl-4-[l,2,4]triazole,簡稱 TAZ-1)、3,4,5-三苯基 -4-[l,2,4]三 °坐(3,4,5-TriphenyM-[l,2,4]triazole,簡稱 TAZ-2)、3-聯苯基-4-基-5-(4-特丁基苯基)-4-笨基-4-[1,2,4] S°^(3-Biphenyl-4-yl-5-(4-tert-butyl-phenyl)-4-phenyl-4-[l,2,4]triazole,簡稱 TAZ-3)、2-聯苯基-4-基-5-(4-特丁基 苯基)-[l,3,4]0,^:^(2-Biphenyl-4-yl-5-(4-tert_butyl-phenyl) -[l,3,4]oxadiazole,簡稱 PBD)、三(8-羥基喹啉)鋁 0765-A22323TWF(N2);hsuhuche C S ) 1322141 (Tris(8-hydroxyquinoline) aluminum,簡稱 Alq3)、或 4,7- 二苯基-[l,l〇]菲淋(4,7-diphenyl-[l,10]phenanthroline,簡稱 DPA)。 陰極18之厚度約為50至100 nm之間,其材料可為 鑛銘合金、鎖銘合金、饍銀合金、鐵铜合金、紹裡合金、 氟化經、或I呂。 除了上述之層狀結構外,本發明之藍光OLED可進— 步具有電洞注入層(hole injection layer,簡稱HIL)與電子注 入層(electron injection layer,簡稱 EIL),如第 2 圖所示。 HIL 19a係夾設於陽極12與HTL 13之間,其厚度約介於 5·20 nm之間,可為芳香胺、紫質(porphyrin)衍生物或摻雜 p-型摻質的氨(p-doped amine)衍生物。芳香胺可為4, 4’,4,,_ 三(3-甲基苯基苯基胺基)三笨胺 (4,4’,4’’-tris(3-methylphenylphenylamino)triphenylamine,簡 稱m-MTDATA)、4,4’,4”-三[2_萘基(苯基)胺基]三苯基胺 (4,4’,4’’-tris[2-naphthyl(phenyl)amino]triphenylamine,簡稱 2-TNATA)、或其他合適之芳香胺。紫質衍生物可為酞菁金 屬(metallophthalo-cyanine)衍生物如醜菁銅(c〇pper phthalocyanine,簡稱 CuPc)。EIL 19b 係夾設於陰極 18 與 ETL 17之間,其厚度約介於0.5nm至5nm之間,可為驗金 屬鹵化物、驗土金屬自化物、驗金屬氧化物或金屬碳酸化 合物’如氟化鋰(LiF)、氟化鉋(CsF)、氟化鈉(NaF)、氟化 鈣(CaF2)、氧化鋰(Li20)、氧化鉋(Cs20)、氧化鈉(Na20)、 碳酸锂(Li2C03)、碳酸絶(Cs2C03)或碳酸鈉(Na2C03)。 0765-A22323TWF(N2);hsuhuche 12 1322141 "上述之藍光oled可結合其他習知之紅光〇LED及綠 光OLED以作為白光發光裝置。 如第3圖所示,本發明可應用於顯示裝置3〇〇,其包 括上述之藍光OLED 301,以及耦接至藍光〇LED ^驅 動電路302,以制動藍光OLED 301。驅動電路3〇2可為 被動矩陣型或主動矩陣型如薄膜電晶體。若上述之驅動電 路進一步耦接並驅動紅光OLED及綠光0LED,即完成所 謂的全彩顯示裝置。 為使本技藝人士更清楚本發明之特徵,特舉例於下述 之實施例。 實施例1 (9,9,1〇,1〇-四曱基_9,10-二氫蒽的合成) 將化合物蒽(10 mmole)置於反應瓶内,加入雙(2-甲氧 基乙基)i$(l〇 mL)以及銘氫化链(26 mmole) ’將此混合物在 氮氣下加熱迴流6小時。反應完畢後,將反應瓿回到室溫, 在冰浴下加入4N鹽酸水溶液終止反應,利用重力過遽分 離固體,可以得到白色固體化合物9,9,10,10-四曱基-9,10-二氫蒽,產率70%。上述之反應式如式5,產物之氫核磁 共振光譜(400 MHz,氘氣仿,ppm)如下:δ 7.50-7.52(m,4H), 7.23-7.25(m, 4H), 1.66(s, 12H).
實施例2 (2,3,6,7-四溴基-9,9,10,10-四甲基二氫蒽的合成) 將實施例1之產物(10 mmole)置於反應瓶内,加入二 氣甲烷(100 mL),另外將溴水加入二氯甲烷(50 mL),之後 0765-A22323TWF(N2);hsuhuche 1322141
利用雙頭針,混合此二溶液,在冰浴下反應一個小時,反 應完畢後,加入大量的蒸館水,之後再加入二氯曱烧(100 mL)進行萃取,接著以飽和硫代硫酸鈉水溶液萃取有機 層,收集有機層並利用飽和食鹽水鹽析及無水硫酸鎮除 水,最後使用旋轉濃縮機除去大部分溶劑,利用抽氣過濾 收集固體,並利用少量乙醚清洗固體,可以得到微黃色固 體2,3,6,7-四溴基-9,9,10,10-四甲基二氫蒽,產率81 %。上 述之反應如式6,產物之核磁共振光譜如下:NMR (600 M Hz, CDC13): δ 1.57 (s, 12 Η), 7.65 (s, 4 Η). 13C NMR (150 M Hz, CDCI3): δ 34.7 (CH3), 37.1(C), 122.6 (C), 131.9 (CH), 142.3 (C).
Br2, rt, lh5 81°/〇
Br B「(式 6) 實施例3 (2, 3, 6, 7-四(4-特丁基苯基)-9, 9, 10, 10-四曱基_9, 10-二氫蒽的合成)
將實施例2之產物(10 mmol) ’ 4-特丁基苯基删酸(40 mmol),以及Pd(PPh3)4 (0.2 mmole),在氮氣下,以除氧過 的曱苯50 mL和乙醇4 mL以及2 Μ碳酸鉀水溶液10 mL 溶解,將整個混合物加熱80°C反應24小時’反應完畢後’ 加入乙酸乙酯50 mL後進行萃取。有機層利用矽藻土過濾 後,以及硫酸鎂除水後,移除溶劑得到固體,依序利用蒸 餾水、曱醇、乙醚清洗固體後即得產物2, 3, 6, 7-四(4-特丁 基苯基)-9, 9, 10, 10-四曱基-9, 10-二氫蒽(簡稱TTA-tBu)。 上述之反應如式7,TTA-tBu之核磁共振光譜如下:1HNMR s 0765-A22323TWF(N2);hsuhuche 1322141 (400 M Hz, CDC13): δ 1.31 (s, 36 Η), 1.79 (s, 12 Η), 7.12 (d, 8 Η, J=8.4 Hz ), 7.24 (d, 8 H, J=8.4 Hz), 7.55 (s, 4 H). 13C NMR (100 M Hz, CDC13): δ 31.4 (CH3), 34.4(C), 35.1 (CH3), 37.1 (C), 124.6 (CH), 128.9 (CH), 129.5 (CH), 138.3 (C), 138.8 (C),141.0 (C),149.1 (C)。TTA-tBu 之高解析質譜如 下:HRMS (FAB, m/z): C58H68 之計算值(calc.)為 764.532卜 測量值(M+H+)為765.5397。TTA-tBu之元素分析如下: C58H68 之計算值(Calc.)為 C: 91.04%,H: 8.96% ;測量值為 C: 91.07%, H: 8.90%。第4圖係不同濃度之TTA-tBu的二 氣曱烷溶液與TTA-tBu薄膜的UV-VIS吸收放射光譜,以 及77K時TTA-tBu固體磷光放射光譜。
實施例4 (2, 3, 6, 7-四(3, 5-雙三氟甲苯基)-9, 9, 10, 10-四曱 • 基-9, 10-二氫蒽的合成) 將實施例3之4-特丁基苯基硼酸換作3,5-二(三氟曱基) 笨基硼酸,其他試劑及反應步驟均與實施例3相同,得到 式8之產物2,3,6,7_四(3,5-雙三氟曱苯基)-9,9,10,10-四 曱基-9, 10-二氫蒽(簡稱TTA-CF3)。TTA-CF3之核磁共振光 譜如下 ^ΗΝΜΙίαΟΟΜΗζ,ΟΟΟ^): . 1.88 (s, 12 Η), 7.58 (s, 8 Η), 7.69 (s, 4 Η), 7.79 (s, 4 H). 13C NMR (100 M Hz, CDC13): .35.1 (CH3), 37.6 (C), 120.9 (CH), 123.0 (C, q, Jc.f=270 Hz), 128.8 (CH), 129.9 (CH), 131.9 (C, q, JC-f=34 Hz), 0765-A22323TWF(N2):hsuhuche 1322141 136.3 (C),142.3 (C),142.9 (C)。TTA-CF3 之高解析質譜如下: HRMS (FAB,m/z): C5〇H28F24 之計算值(calc·)為 1084.1808,測 量值(M+H+)為1085.1886。TTA-CF3之元素分析如下: C50H28F24之計算值(Calc.)為 C: 55.36%,H: 2.60% ;測量值 為C: 55.18%, H: 2.74%。第5圖係不同濃度之TTA-CF3的 二氯曱烷溶液與TTA-CF3薄膜的UV-VIS吸收放射光譜, 以及77K時TTA-CF3固體磷光放射光譜。
實施例 5 (2, 3, 6, 7-四(3, 5-二甲苯基)-9, 9, 10, 10-四甲基-9, 10-二氫蒽的合成)
將實施例3之4-特丁基苯基硼酸換作3,5-二甲基苯基 硼酸,其他試劑及反應步驟均與實施例3相同,得到式9 之產物2, 3, 6, 7-四(3, 5-二甲苯基)-9, 9, 10, 10-四曱基-9, 10-二氫蒽(簡稱TTA-Me)。TTA-Me之核磁共振光譜如下: δ 1.78 (s,12 H), 2.21 (s,24 H),6.79 (s,8 Η ),6.83 (s,4 H), 7.52 (s, 4 H). ,3C NMR (150 M Hz, CDC13): δ 21.3 (CH3), 35.1 (CH3),37.0 (C), 127.7 (CH), 127.8 (CH),128.7 (CH), 136.9 (C),138.4 (C),140.9 (C),141.5 (C)。TTA-Me 之高解 析質譜如下:HRMS (EI,m/z): C50H52之計算值(calc·)為 652.4069,測量值(M+)為652.4072。TTA-Me之元素分析如 下:CsoH52之計算值(Calc.)為 C: 91.97%, 8.03% ;測量 0765-A22323TWF(N2);hsuhuche 16 1322141 值為C: 92.03%,Η: 8.05%。第6圖係不同濃度之TTA-Me 的二氯甲烷溶液與TTA-Me薄膜的UV-VIS吸收放射光 譜,以及77K時TTA-Me固體磷光放射光譜。
(式9) m 實施例6 (2, 3, 6, 7-四(3, 5_雙甲氧苯基)-9, 9, 10, 10-四曱基 -9, 10-二氫蒽) 將實施例3之4-特丁基苯基硼酸換作3,5-二甲氧基苯 基硼酸,其他試劑及反應步驟均與實施例3相同,得到式 9之產物2, 3, 6, 7-四(3, 5-雙甲氧苯基)-9, 9, 10, 10-四曱基 -9, 10-二氫蒽(簡稱TTA-OMe)。TTA-OMe之核磁共振光譜 如下:bNMR (400 M Hz,CDC13): δ 1.78 (s, 12 H),3.63 (s, 24 Η), 6.34 (t, 4 Η, J=2 Hz ), 6.39 (d, 8 H, J=2 Hz), 7.57 (s, 4 • H). ,3C NMR (100 M Hz, CDC13): δ 35.1 (CH3), 37.1 (C), 55.3 (CH3), 98.9 (CH), 107.9 (CH), 128.5 (CH), 138.3 (C), 141.2 (C), 143.6 (C),160.2 (C)。TTA-OMe 之高解析質譜如 下:HRMS (El, m/z): C5〇H5208 之計算值(calc.)為 780.3662, 測量值(M+)為780.3637 °TTA-OMe之元素分析如下: C50H52O8 之計算值(Calc.)為 C:76.90°/〇, Η:6·71%;測量值 為C: 77.02%,Η: 6.43%。第7圖係不同濃度之TTA-OMe 的二氯曱烷溶液與TTA-OMe薄膜的UV-VIS吸收放射光 譜,以及77K時TTA-OMe固體磷光放射光譜。 0765-A22323TWF(N2);hsuhuche 17 1322141
實施例 7 (2, 3, 6, 7-四(4-聯苯基)_9, 9, 10, 10·四甲基-9, 10-二氫蒽) 將實施例3之4-特丁基笨基硼酸換作聯苯基硼酸,其 他試劑及反應步驟均與實施例3相同,得到式11之產物 2, 3, 6, 7-四(4-聯苯基)-9, 9, 10, 1〇_四甲基-9, 10-二氫蒽(簡 稱ΤΤΑ-ΒΡ)°ΤΤΑ-ΒΡ之核磁共振光譜如下:iNMRGOO Μ Hz, CDC13): δ 1.86 (s, 12 Η), 7.31-7.33 (m, 12 Η), 7.39-7.43 (m,8 Η ),7.51 (d, 8 Η, J=7.2 Hz), 7.60 (d,8 Η, J=7.2 Hz)。 TTA-BP之高解析質譜如下:HRMS (EI,m/z): C66H52之計算 值(calc.)為 844.4069 ’ 測量值(m+h+)為 845.4141。第 8 圖係 TTA-BP的二氯曱烷溶液與TTA-BP薄膜的UV-VIS吸收放 射光譜,以及77K時TTA-BP固體磷光放射光譜。
分別取實施例3-6之產物作為主體材料,配合Firpytz 作為掺質’以94:6之體積比均勻混合形成發光層材料。 0765-A22323TWF(N2);hSuhuche 18 1322141 接著如第1圖所示,將ITO形成於玻璃基板11上, 以濕式钮刻或電漿_清洗後,形成80 nm厚之陽極12。將 NPB蒸鍍於陽極12上形成30nm厚之HTL 13。將mCP 蒸鍍於HTL 13上形成20nm厚之EBL 14。將上述之發 光層材料旋塗於EBL 14上形成30nm厚之發光層15。將 BCP蒸鍍於發光層15上形成10nm厚之HBL 16。將Alq3 蒸鍍於HBL 16上形成30nm之ETL 17。最後再將鎂銀 合金真空鍍膜於ETL 17上形成55 nm厚之陰極18。上 述之藍光OLED中每一層的材料如表一所示,發光效能 如表二所示,而元件B-G的發光圖譜如第9圖所示。 表一 編號 A B c D E F G 陽極 ITO HTL NPB NPB NPB NPB TCTA TCTA TCTA EBL mCP 發光層 (主體材料) TTA-tBu tta-cf3 TTA-Me TTA-OMe TTA- CF3 TTA-Me TTA-OMe 發光層 (掺質) FIrpytz HBL BCP ETL Alq3 陰極 Mg:Ag
0765-A22323TWF(N2);hsuhuche S 1322141 表二 元件 主體材料 驅動 電壓 (V) 外部量子 效率(%,V) 100 mA/cm^ 之亮度 (Cd/m2) 電流效率 (Cd/A,V) 功率效率 (lm/W,V) 10V時之 C正座標㈣ A TTA-tBu 6.1 1.53,13.0 微弱 2.44,13.0 0.61,12.5 0.14,0.21 B tta-cf3 5.2 6.60,9.0 1158 10.83,9.0 4.03,8.0 0.13,0.21 C TTA-Me 6.1 4.95,11.0 微弱 8.73,11.0 2.58,10.0 0.14,0.26 D TTA-OMe 5.1 5.20,8.5 4006 8.58,8.5 3.24,8.0 0.12,0.19 E TTA-CF3 3.7 4.34,7.0 2034 9.59,7.0 4.31,7.0 0.11,0.17 F ΤΓΑ-Me 7.5 2.73,14.5 3569 5.30,14.5 1.14,14.5 0.14,0.27 G TTA-OMe 4.1 5.69,7.0 5994 9.85,7.0 4.67,6.5 0.11,0.21
從表二的數據可看出本發明所製備的四苯基四曱基二 氫蒽化合物可作為磷光主體材料應用在有機發光二極體的 發光層中。應用本發明之主體材料所製備之元件可放出藍 色的磷光,同時元件具有高亮度、高電流效率及優異的CIE 座標。 雖然本發明已以數個較佳實施例揭露如上,然其並非 用以限定本發明,任何所屬技術領域中具有通常知識者, φ 在不脫離本發明之精神和範圍内,當可作任意之更動與潤 飾,因此本發明之保護範圍當視後附之申請專利範圍所界 定者為準。 0765-A22323TWF(N2);hsuhuche 20 1322141 • 【圖式簡單說明】 第1圖係本發明一實施例之OLED剖面結構; 第2圖係本發明一實施例之OLED剖面結構; - 第3圖係應用本發明之OLED的顯示裝置示意圖; 第4圖係係本發明之TTA-tBu的二氣甲烧溶液與 TTA-tBu薄膜的UV-VIS吸收放射光譜,以及77K時 TTA-tBu固體磷光放射光譜; φ 第5圖係本發明之TTA-CF3的二氣曱烷溶液與TTA- CF3薄膜的UV-VIS吸收放射光譜,以及77K時TTA- CF3 固體磷光放射光譜; 第6圖係本發明之TTA-Me的二氣曱烷溶液與TT A-Me 薄膜的UV-VIS吸收放射光譜,以及77K時TTA-Me固體 磷光放射光譜; 第7圖係本發明之TTA-OMe的二氣曱烷溶液與 TTA-OMe薄膜的UV-VIS吸收放射光譜,以及77K B夺 • TTA-OMe固體磷光放射光譜; 第8圖係本發明之TTA-BP的二氯曱烷溶液與TTA-BP 薄膜的UV-VIS吸收放射光譜,以及77K時TTA-BP固體 磷光放射光譜;以及 第9圖係本發明實施例中元件B-G之放光光譜。 【主要元件符號說明】 11〜玻璃基板; 12〜陽極; 0765-A22323TWF(N2);hsuhuche 21 1322141 13〜電洞傳輸層; 14〜電子阻擋層; 15〜發光層; 16〜電洞阻擋層; 17〜電子傳輸層; 18〜陰極;
19a〜電洞注入層; 19b〜電子注入層; 300〜顯示裝置; 301〜藍光OLED ; 302〜驅動電路。
0765-A22323TWF(N2);hsuhuche
Claims (1)
- 、申請專利範圍: v . L一種主體材料,其結構式如 R〇 丨·(R3)n -(R3)„ 尺2各自獨立,係擇自氫或q H=C5·14之芳香環基或芳香雜環二, 3係擇自C5_M之芳香環基或芳香 C5-8之環烷基、Cu之氟化烷美’、《土、Cl-8之大 化坑基、或CM之燒氧基;, n係擇自1-10之整數。 請專㈣圍第丨項所述之主體 甲基,且r2為氫。 丹甲K丨為基 及 3.:申請專利範圍第丨項所述之主體材料,其中Ar為 本暴’心的取代位置為間位,且η為2。 ^ 4.如申請專利範圍第1項所述之主體材料,其令射為 苯基’心的取代位置為對位,且η為h ‘ 5.一種藍光有機發光二極體,包括: —陽極; —電洞傳輸層,位於該陽極上; 一電子阻擋層,位於該電洞傳輸層上; 一發光層; 0765-A22323TWF(N2);hsuhuche 23 丄丄 ’:· 一電洞阻擋層,位於該發光層上; —電子傳輪層,位於該電洞阻擋層上;以及 .· 一陰極; ••㈣其中該發光層包括如巾請專利範圍第1項所述之主體 材科,以及—掺質。 览 體,2申二專利範圍第5項所述之藍光有機發光二極 ,二中該陽極包括銦錫氧化物、銦鋅氧化物、鋁鋅氧化 •勿、鎘錫氧化物、氧化錫、*氧化鋅。 7. 如中請專利範圍第5項所述之藍光有機發光二極 體,其中該電洞傳輸層包括可為N,N,_雙萘基_ N,N,_雙笨基 ,,又本基-1,1,-聯苯基_4,4,_二胺、n,N-二曱基Ν,Ν·雙(3_ 曱基苯基聯苯基_4,4_二胺、4,_咔唑基_9_基-聯苯基_心 萘基-1-基-笨基胺、Ν,Ν、二菲基_9_基_4,Ν’_二苯基-聯 ,基_4,4’-二胺、雙(4-Ν,Ν-二乙基胺基-2-曱基苯基)-4-曱基 苯基曱烷、3,3’-二曱基-]^,>1,>^3,-四-111-曱苯基聯笨基 φ _4,4’_二胺、或三-(4-咔唑基-9-基·苯基)-胺。 8. 如申請專利範圍第5項所述之藍光有機發光二極 體’其中該電子阻擋層包括N,N'-二咔唑基-3,5-苯、4, 4’_N,N’_二咔唑基聯笨、M-二咔唑基9-基-苯、或1,3,5-三(N-咔唑基)苯。 9. 如申請專利範圍第5項所述之藍光有機發光二極 體’其中該掺質包括雙-[(4,6-(二氟苯基)-吼啶基 -N,C2’)-5-(吡啶基-2-基)-1氫化三唑銥(in)化合物、雙[(4,6-二氟苯基)-吡啶基-N,C,]吡啶羧酸銥(III)化合物、雙[(4,6-0765-A22323TWF(N2);hsuhuche 24 1322141 一氣本基)-α比咬基-N,C’]-5-( °比咬基-2·基)-1-氫化四a坐基 銥(III)化合物、雙[(4,6-二氟苯基)-吡啶基·ν,〇’]-四(1-吡唑) 硼化銥(III)、或三(1-苯基-3-曱基-(苯并咪唑基·2_亞基 -C,C’-銥(III)化合物。 10.如申請專利範圍第5項所述之藍光有機發光二極 體,其中該電洞阻擋層包括1,3,5_三(苯基_2_苯并咪唑基)_ 苯、2, 9-二曱基-4,7-二苯基-1,10-菲啉、雙(2_甲基各羥基 喹啉)-4-苯基酚基鋁、雙(2-甲基羥基喹啉)_酚基鋁、雙 甲基-8-羥基喹啉)_三苯基矽氧化鋁、或丨,4•雙(三笨基矽 烷)苯。 11,如申請專利範圍第5項所述之藍光有機發光二極 體,其中該電子傳輸層包括三(苯基_2_笨并咪唑基)_ 苯、4-萘基基_3,5_二苯基-4-[1,2,4]三唑、3,4,5_三苯基 -4-[1,2,4]三唑、3-聯笨基-4-基-5-(4-特丁基苯基)-4-苯基 -4-[1,2,4]三唑、2-聯苯基_4_基-5-(4-特丁基苯基)-[1,3,4] 噁一唑、三(8-羥基喹啉)鋁、或4,7_二苯基菲啉。 12. 如申請專利範圍第5項所述之藍光有機發光二極 體,其中該陰極包括鎂鋁合金、鎂鋁合金、鎂銀合金、鎂 銦合金、鋁經合金、氟化鋰、或鋁。 13. 如申請專利範圍第5項所述之藍光有機發光二極 體,其中該陽極與該電洞傳輸層之間更包括一電洞注入 層’且該電洞注入層包括芳香胺、紫質衍生物或摻雜ρ·型 捧質的氮衍生物。 14. 如申請專利範圍第5項所述之藍光有機發光二極 0765-A22323TWF(N2);hsuhuche 25 1322141 :體,其中該陰極與該電子傳輸層之間更包括一電子注入 : 層,且該電子注入層包括驗金屬S化物、驗土金屬函化物、 驗金屬氧化物或金屬破酸化合物。 15.—種白光發光裝置,包括: ' 如申請專利範圍第5項所述之藍光有機發光二極體; 一紅光有機發光二極體;以及 一綠光有機發光二極體。0765-A22323TWF(N2);hsuhuche26
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| EP2978035A1 (en) | 2014-07-24 | 2016-01-27 | E.T.C. S.r.l. | Organic electroluminescent transistor |
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