WO2010098386A1 - 有機電界発光素子 - Google Patents
有機電界発光素子 Download PDFInfo
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- WO2010098386A1 WO2010098386A1 PCT/JP2010/052966 JP2010052966W WO2010098386A1 WO 2010098386 A1 WO2010098386 A1 WO 2010098386A1 JP 2010052966 W JP2010052966 W JP 2010052966W WO 2010098386 A1 WO2010098386 A1 WO 2010098386A1
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- Prior art keywords
- group
- nitrogen
- carbon atoms
- layer
- aromatic
- Prior art date
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- 239000010410 layer Substances 0.000 claims abstract description 169
- 230000000903 blocking effect Effects 0.000 claims abstract description 37
- MPQXHAGKBWFSNV-UHFFFAOYSA-N oxidophosphanium Chemical class [PH3]=O MPQXHAGKBWFSNV-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 35
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 25
- 125000003118 aryl group Chemical group 0.000 claims abstract description 18
- 239000012044 organic layer Substances 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 54
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 47
- 125000006615 aromatic heterocyclic group Chemical group 0.000 claims description 26
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 claims description 25
- 125000001424 substituent group Chemical group 0.000 claims description 21
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 claims description 15
- 239000002019 doping agent Substances 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 13
- 125000004429 atom Chemical group 0.000 claims description 11
- 125000003545 alkoxy group Chemical group 0.000 claims description 8
- 125000003277 amino group Chemical group 0.000 claims description 8
- 150000001491 aromatic compounds Chemical class 0.000 claims description 8
- 125000004104 aryloxy group Chemical group 0.000 claims description 8
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- 238000010030 laminating Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 75
- 150000001875 compounds Chemical class 0.000 description 36
- -1 carbazole compound Chemical class 0.000 description 30
- 238000002347 injection Methods 0.000 description 24
- 239000007924 injection Substances 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 17
- 230000005525 hole transport Effects 0.000 description 16
- 239000000203 mixture Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 11
- 230000005284 excitation Effects 0.000 description 10
- 238000005215 recombination Methods 0.000 description 9
- 230000006798 recombination Effects 0.000 description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 8
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000000295 emission spectrum Methods 0.000 description 8
- 239000011777 magnesium Substances 0.000 description 8
- 229910052749 magnesium Inorganic materials 0.000 description 8
- 238000003786 synthesis reaction Methods 0.000 description 8
- 239000010409 thin film Substances 0.000 description 8
- 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 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 6
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 6
- 125000000609 carbazolyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 description 6
- 239000007772 electrode material Substances 0.000 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 description 6
- VQGHOUODWALEFC-UHFFFAOYSA-N 2-phenylpyridine Chemical compound C1=CC=CC=C1C1=CC=CC=N1 VQGHOUODWALEFC-UHFFFAOYSA-N 0.000 description 5
- LNUFLCYMSVYYNW-ZPJMAFJPSA-N [(2r,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6r)-6-[(2r,3r,4s,5r,6r)-6-[(2r,3r,4s,5r,6r)-6-[[(3s,5s,8r,9s,10s,13r,14s,17r)-10,13-dimethyl-17-[(2r)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1h-cyclopenta[a]phenanthren-3-yl]oxy]-4,5-disulfo Chemical compound O([C@@H]1[C@@H](COS(O)(=O)=O)O[C@@H]([C@@H]([C@H]1OS(O)(=O)=O)OS(O)(=O)=O)O[C@@H]1[C@@H](COS(O)(=O)=O)O[C@@H]([C@@H]([C@H]1OS(O)(=O)=O)OS(O)(=O)=O)O[C@@H]1[C@@H](COS(O)(=O)=O)O[C@H]([C@@H]([C@H]1OS(O)(=O)=O)OS(O)(=O)=O)O[C@@H]1C[C@@H]2CC[C@H]3[C@@H]4CC[C@@H]([C@]4(CC[C@@H]3[C@@]2(C)CC1)C)[C@H](C)CCCC(C)C)[C@H]1O[C@H](COS(O)(=O)=O)[C@@H](OS(O)(=O)=O)[C@H](OS(O)(=O)=O)[C@H]1OS(O)(=O)=O LNUFLCYMSVYYNW-ZPJMAFJPSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 4
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 4
- 229910052741 iridium Inorganic materials 0.000 description 4
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 4
- 150000004866 oxadiazoles Chemical class 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 4
- MZYDBGLUVPLRKR-UHFFFAOYSA-N 9-(3-carbazol-9-ylphenyl)carbazole Chemical compound C12=CC=CC=C2C2=CC=CC=C2N1C1=CC(N2C3=CC=CC=C3C3=CC=CC=C32)=CC=C1 MZYDBGLUVPLRKR-UHFFFAOYSA-N 0.000 description 3
- WZAJJFSKAYHLDR-UHFFFAOYSA-N 9-(6-bromopyridin-2-yl)carbazole Chemical compound BrC1=CC=CC(N2C3=CC=CC=C3C3=CC=CC=C32)=N1 WZAJJFSKAYHLDR-UHFFFAOYSA-N 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 3
- UJOBWOGCFQCDNV-UHFFFAOYSA-N Carbazole Natural products C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 229910052738 indium Inorganic materials 0.000 description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 125000002524 organometallic group Chemical group 0.000 description 3
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical compound P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 description 3
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 3
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- UWRZIZXBOLBCON-VOTSOKGWSA-N (e)-2-phenylethenamine Chemical class N\C=C\C1=CC=CC=C1 UWRZIZXBOLBCON-VOTSOKGWSA-N 0.000 description 2
- VERMWGQSKPXSPZ-BUHFOSPRSA-N 1-[(e)-2-phenylethenyl]anthracene Chemical class C=1C=CC2=CC3=CC=CC=C3C=C2C=1\C=C\C1=CC=CC=C1 VERMWGQSKPXSPZ-BUHFOSPRSA-N 0.000 description 2
- MVWPVABZQQJTPL-UHFFFAOYSA-N 2,3-diphenylcyclohexa-2,5-diene-1,4-dione Chemical class O=C1C=CC(=O)C(C=2C=CC=CC=2)=C1C1=CC=CC=C1 MVWPVABZQQJTPL-UHFFFAOYSA-N 0.000 description 2
- FEYDZHNIIMENOB-UHFFFAOYSA-N 2,6-dibromopyridine Chemical compound BrC1=CC=CC(Br)=N1 FEYDZHNIIMENOB-UHFFFAOYSA-N 0.000 description 2
- XFJBGINZIMNZBW-CRAIPNDOSA-N 5-chloro-2-[4-[(1r,2s)-2-[2-(5-methylsulfonylpyridin-2-yl)oxyethyl]cyclopropyl]piperidin-1-yl]pyrimidine Chemical compound N1=CC(S(=O)(=O)C)=CC=C1OCC[C@H]1[C@@H](C2CCN(CC2)C=2N=CC(Cl)=CN=2)C1 XFJBGINZIMNZBW-CRAIPNDOSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
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- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
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- 150000008425 anthrones Chemical class 0.000 description 2
- 150000004982 aromatic amines Chemical class 0.000 description 2
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
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- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
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- 229940079865 intestinal antiinfectives imidazole derivative Drugs 0.000 description 2
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 2
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- 125000005647 linker group Chemical group 0.000 description 2
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- 150000007978 oxazole derivatives Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 150000004986 phenylenediamines Chemical class 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
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- JEXVQSWXXUJEMA-UHFFFAOYSA-N pyrazol-3-one Chemical class O=C1C=CN=N1 JEXVQSWXXUJEMA-UHFFFAOYSA-N 0.000 description 2
- 150000003219 pyrazolines Chemical class 0.000 description 2
- XSCHRSMBECNVNS-UHFFFAOYSA-N quinoxaline Chemical compound N1=CC=NC2=CC=CC=C21 XSCHRSMBECNVNS-UHFFFAOYSA-N 0.000 description 2
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- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical class C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
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- 229940042055 systemic antimycotics triazole derivative Drugs 0.000 description 2
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- 238000007740 vapor deposition Methods 0.000 description 2
- SSJXIUAHEKJCMH-PHDIDXHHSA-N (1r,2r)-cyclohexane-1,2-diamine Chemical compound N[C@@H]1CCCC[C@H]1N SSJXIUAHEKJCMH-PHDIDXHHSA-N 0.000 description 1
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- BCMCBBGGLRIHSE-UHFFFAOYSA-N 1,3-benzoxazole Chemical class C1=CC=C2OC=NC2=C1 BCMCBBGGLRIHSE-UHFFFAOYSA-N 0.000 description 1
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- FLBAYUMRQUHISI-UHFFFAOYSA-N 1,8-naphthyridine Chemical compound N1=CC=CC2=CC=CN=C21 FLBAYUMRQUHISI-UHFFFAOYSA-N 0.000 description 1
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- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/553—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having one nitrogen atom as the only ring hetero atom
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- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6558—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing at least two different or differently substituted hetero rings neither condensed among themselves nor condensed with a common carbocyclic ring or ring system
- C07F9/65583—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing at least two different or differently substituted hetero rings neither condensed among themselves nor condensed with a common carbocyclic ring or ring system each of the hetero rings containing nitrogen as ring hetero atom
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- H10K85/346—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising platinum
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- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/18—Metal complexes
- C09K2211/188—Metal complexes of other metals not provided for in one of the previous groups
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- 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
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- 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]
- H10K50/18—Carrier blocking layers
Definitions
- the present invention relates to an organic electroluminescent element containing a phosphine oxide derivative, and more particularly to a thin film device that emits light by applying an electric field to a light emitting layer made of an organic compound.
- an organic electroluminescent element (hereinafter referred to as an organic EL element) is composed of a light emitting layer and a pair of counter electrodes sandwiching the layer as the simplest structure. That is, in an organic EL element, when an electric field is applied between both electrodes, electrons are injected from the cathode, holes are injected from the anode, and these are recombined in the light emitting layer to emit light. .
- CBP 4,4′-di (9-carbazolyl) biphenyl
- Ir (ppy) 3 2,4′-di (9-carbazolyl) biphenyl
- Non-Patent Document 1 improves the triplet excitation energy by modifying the structure of CBP, whereby bis [2- (4,6-difluorophenyl) pyridinato-N, C2 ′].
- FIrpic The luminous efficiency of (picolinato) iridium complex (hereinafter referred to as FIrpic) is improved.
- mCP 1,3-di (9-carbazolyl) benzene
- these materials are not practically satisfactory particularly from the viewpoint of durability.
- Patent Documents 3 to 9 disclose some compounds for organic EL devices having some specific phosphine oxide skeletons.
- Patent Document 3 discloses an example in which the following phosphine oxide compound (Compound 3) is used as a phosphorescent host material.
- Patent Document 4 the following phosphine oxide compound (compound 4) having a carbazolyl group as a substituent having a hole transporting property is disclosed as an organic EL device material.
- the compound cannot exhibit sufficient electron transport ability because the phosphine oxide group responsible for electron transport ability is surrounded by three bulky carbazolyl groups. Therefore, the charge balance in the light emitting layer is lost, and the recombination probability is lowered.
- a phosphine oxide compound in which a diarylamino group or a carbazolyl group is linked by an aromatic linking group as a substituent having a hole transporting property is a fluorescent host material, an organic thin film layer material adjacent to a light emitting layer And as an electron transport material.
- the phosphine oxide compounds are compounds 5 to 8 represented by formulas (5) to (8).
- the diarylamino group or carbazolyl group having a hole transporting property and a phosphine oxide group having an electron transporting ability are connected by an aromatic linking group.
- the luminous efficiency is not sufficient for practical use.
- Patent Document 9 discloses the following phosphine oxide compound (Compound 9) having a heterocyclic ring as a substituent as a host material.
- An object of this invention is to provide the practically useful organic EL element which has high efficiency and high drive stability in view of the said present condition, and a compound suitable for it.
- a compound having a phosphine oxide in which a diarylamine moiety having a hole transporting property and a nitrogen-containing heterocyclic linking group are directly bonded exhibits a well-balanced good charge (hole / electron) injection and transport property.
- the inventor has clarified that an organic EL device having the compound exhibits excellent characteristics.
- the compound has been found to have good thin film stability and thermal stability, and it has been clarified that the organic EL device containing the compound is a highly durable device exhibiting excellent driving stability. Completed the invention.
- the present invention relates to an organic electroluminescent device in which an anode, an organic layer including a phosphorescent light emitting layer and a cathode are laminated on a substrate, and a group consisting of a phosphorescent light emitting layer, an electron transport layer, a hole blocking layer and an exciton blocking layer.
- the organic electroluminescent element characterized by containing the phosphine oxide derivative represented by General formula (1) in at least one layer chosen from these.
- L 1 is independently a direct bond or a monovalent to trivalent aromatic group obtained by removing 1 to 3 hydrogens from an aromatic compound represented by the following formula (1a), (1b) or (1c): As indicated, at least one L 1 is not a direct bond.
- Ar 1 is independently an aromatic hydrocarbon group having 6 to 20 carbon atoms or an aromatic heterocyclic group having 3 to 20 carbon atoms, and two Ar 1 bonded to the same nitrogen atom may be directly or A nitrogen-containing heterocyclic ring containing the nitrogen may be bonded through another atom and condensed with the nitrogen-containing heterocyclic ring to form a condensed ring. May have a substituent.
- m, n and p are each independently an integer of 0 to 2, and m + n + p is 1 to 6.
- X each independently represents a substituted or unsubstituted methine or nitrogen, and when divalent or trivalent, at least one is nitrogen.
- the substituents are each independently an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an aryloxy group having 3 to 20 carbon atoms, or an alkyl group having 6 to 20 carbon atoms.
- the following general formula (2) is particularly preferable.
- each Y independently represents a substituted or unsubstituted methine or nitrogen.
- the substituents are each independently an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an aryloxy group having 3 to 20 carbon atoms, or an alkyl group having 6 to 20 carbon atoms.
- the aromatic hydrocarbon group or aromatic heterocyclic group bonded to the nitrogen atom of the amino group is bonded directly or via another atom to form a nitrogen-containing heterocyclic ring containing the nitrogen
- a condensed ring may be formed by condensation with a nitrogen-containing heterocycle.
- two six-membered aromatic hydrocarbon group or a nitrogen-containing 6-membered aromatic heterocyclic group that substitutes nitrogen attached to L 1 is bound to the L 1 bonded directly or via another atomic
- a nitrogen-containing heterocycle containing nitrogen may be formed and condensed together with the nitrogen-containing heterocycle to form a condensed ring.
- L 1, m, n and p are each synonymous with L 1, m, n and p in the general formula (1).
- the present invention relates to an organic electroluminescent device in which the organic layer containing the phosphine oxide derivative is a light emitting layer containing a phosphorescent light emitting dopant.
- the organic EL device of the present invention contains the phosphine oxide derivative represented by the general formula (1) in the organic layer.
- the organic layer is a layer provided between the anode and the cathode, includes the light emitting layer as an essential layer, and includes other layers as necessary.
- the phosphine oxide derivative represented by the general formula (1) includes a phosphine oxide (L 1 -P ⁇ O) in which a nitrogen-containing heterocycle having an electron injection and transport ability is directly bonded, and at least a hole injection and transport ability. It has one NAr 1 Ar 1 .
- L 1 is independently a direct bond or a monovalent to trivalent valence obtained by removing 1 to 3 hydrogens from the aromatic compound represented by the formula (1a), (1b) or (1c). Wherein at least one L 1 is not a direct bond. Focusing on the formula (1b) of the above formula (1a), (1b) or (1c), when one 6-membered ring is represented by A, this aromatic compound becomes A 1 -A 2 . When the aromatic group is a monovalent aromatic group, m, n, or p, which represents -A 1 -A 2 and represents the number of NAr 1 Ar 1 groups in the general formula (1), is 0.
- L 1 is the formula (1a), since they represent a monovalent to trivalent aromatic group obtained by removing one to three hydrogen from an aromatic compound represented by (1b) or (1c), preferably L 1 is It will be understood by explaining the above aromatic compounds. Therefore, when L 1 is described by an aromatic compound (aromatic hydrocarbon compound or aromatic heterocyclic compound) represented by the above formula (1a), (1b) or (1c), the following aromatic compound is obtained. Illustrated. In the formula (1a), (1b) or (1c), X is methine or nitrogen, and methine may be substituted methine, and in the case of divalent or trivalent, at least one is nitrogen.
- preferable aromatic hydrocarbon compounds include benzene, biphenyl or terphenyl which may have a substituent. More preferably, it is benzene which may have a substituent.
- preferable nitrogen-containing aromatic hydrocarbon compounds include pyridine, pyrazine, pyrimidine, pyridazine, triazine, or a heterocyclic ring thereof, or a heterocyclic ring thereof and a total of two benzene rings which may have a substituent. Or the compound connected in the shape of three chains is mentioned. More preferred are pyridine, pyrazine, pyrimidine, pyridazine, triazine, bipyridine, bipyrimidine, vitriazine, or phenylpyridine which may have a substituent.
- the substituents are each independently an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, An aryloxy group having 3 to 20 carbon atoms, an aromatic hydrocarbon group having 6 to 20 carbon atoms, or an aromatic heterocyclic group having 3 to 20 carbon atoms is represented.
- alkyl group having 1 to 6 carbon atoms include methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, sec-butyl group, tert-butyl group, pentyl group, hexyl group and cyclohexyl group. Etc. are preferable.
- alkoxy group having 1 to 6 carbon atoms include methoxy group, ethoxy group, propoxy group, isopropoxy group, butoxy group, isobutoxy group, sec-butoxy group, tert-butoxy group and the like.
- aryloxy group having 3 to 20 carbon atoms include phenoxy group, pyridyloxy group, pyrazinyloxy group, pyrimidinyloxy group, pyridazinyloxy group, and triazinyloxy group.
- aromatic hydrocarbon group having 6 to 20 carbon atoms include a phenyl group, a biphenylyl group, and a terphenylyl group.
- aromatic heterocyclic group having 3 to 20 carbon atoms include thiophene, thiazole, furan, oxazole, pyran, pyrrole, imidazole, pyrazole, isothiazole, isoxazole, furazane, triazole, pyridine, pyrazine, pyrimidine, and pyridazine.
- Triazine, or a monovalent group formed by removing one hydrogen atom from a heterocyclic ring or a compound in which these heterocyclic rings and a benzene ring are linked in a chain of 2 to 4 is preferable.
- Ar 1 is an aromatic hydrocarbon group having 6 to 20 carbon atoms or an aromatic heterocyclic group having 3 to 20 carbon atoms, which may or may not have a substituent.
- Preferred examples of Ar 1 include a monovalent group generated from benzene, pyridine, pyrimidine, triazine, naphthalene, quinoline, isoquinoline, quinoxaline or naphthyridine. More preferred is benzene.
- Two Ar 1 bonded to the same nitrogen atom are bonded directly or via another atom to form a nitrogen-containing heterocycle containing the nitrogen, and condensed with the nitrogen-containing heterocycle to form a condensed ring May be.
- a nitrogen-containing heterocyclic ring containing the nitrogen may be formed, and two Ar 1 may be condensed to the nitrogen-containing heterocyclic ring to form a condensed ring of three or more rings.
- specific examples of the atom include carbon, nitrogen, oxygen, sulfur and the like, preferably carbon and oxygen.
- the nitrogen-containing heterocycle is preferably a 5- to 6-membered ring. It is a structure in which two aromatic rings derived from Ar 1 are condensed.
- two aromatic hydrocarbon groups or aromatic heterocyclic groups bonded to the same nitrogen atom form a nitrogen-containing heterocyclic ring containing the nitrogen atom and an aromatic hydrocarbon ring or aromatic condensed with the nitrogen-containing heterocyclic ring. It is preferably a condensed ring having 3 or more rings having a heterocyclic group.
- Preferred condensed rings include a carbazole ring, an acridine ring, a phenoxazine ring, a benzocarbazole ring, and more preferably a carbazole ring.
- aromatic hydrocarbon group or aromatic heterocyclic group has a substituent
- preferred substituents are alkyl groups having 1 to 6 carbon atoms, alkoxy groups having 1 to 6 carbon atoms, and aryloxy groups having 3 to 20 carbon atoms.
- An amino group substituted with The aromatic hydrocarbon group or aromatic heterocyclic group bonded to the nitrogen atom of the amino group is bonded directly or via another atom to form a nitrogen-containing heterocyclic ring containing the nitrogen, and the nitrogen-containing heterocyclic ring It may be condensed with a ring to form a condensed ring.
- the aromatic hydrocarbon group and the aromatic heterocyclic group include an aromatic hydrocarbon group and an aromatic group described in the description of the substituent when X of L 1 is a substituted methine.
- Heterocyclic groups are exemplified as preferred examples.
- n, n and p are each independently an integer of 0 to 2, and m + n + p is 1 to 6.
- the general formula (2) is different in that Ar 1 in the general formula (1) is limited to a 6-membered aromatic ring, and L 1 , m, n, and p are each represented by the general formula (1). With L 1 , m, n and p.
- each Y independently represents substituted or unsubstituted methine or nitrogen.
- the substituents are each independently an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an aryloxy group having 3 to 20 carbon atoms, or an alkyl group having 6 to 20 carbon atoms.
- the aromatic hydrocarbon group or aromatic heterocyclic group bonded to the nitrogen atom of the amino group is bonded directly or via another atom to form a nitrogen-containing heterocyclic ring containing the nitrogen
- a condensed ring may be formed by condensation with a nitrogen-containing heterocycle.
- the two 6-membered rings that substitute for nitrogen bonded to L 1 are bonded directly or via other atoms to form a nitrogen-containing heterocyclic ring containing nitrogen bonded to L 1, and the nitrogen-containing heterocyclic ring A condensed ring may be formed by condensation together.
- This condensed ring is the same as in the general formula (1) when two Ar 1 are condensed together with a nitrogen-containing heterocyclic ring containing nitrogen to form a condensed ring of three or more rings.
- phosphine oxide derivative represented by the general formula (1) Specific examples of the phosphine oxide derivative represented by the general formula (1) are shown below, but the material used for the organic EL device of the present invention is not limited to these.
- the number given to the chemical formula is the compound number.
- the organic EL device of the present invention has an organic layer including a light emitting layer between an anode and a cathode laminated on a substrate.
- the light emitting layer is a phosphorescent light emitting layer.
- the organic EL device of the present invention contains the above phosphine oxide derivative in a light emitting layer, an electron transport layer, a hole blocking layer, or an exciton blocking layer.
- the phosphine oxide derivative is preferably contained in the light emitting layer. More preferably, it contains as a host material of the light emitting layer containing a phosphorescence dopant.
- the above phosphine oxide derivative is not included in the light emitting layer, it is included in the electron transport layer, hole blocking layer or exciton blocking layer. However, since these layers are not essential layers, at least one layer is included, and the above phosphine oxide derivative may be included in the one layer.
- FIG. 1 is a cross-sectional view schematically showing a structural example of a general organic EL element 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, Represents 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 cathode 7, the electron transport layer 6, the light emitting layer 5, the hole transport layer 4, and the anode 2 can be laminated on the substrate 1 in this order. Also in this case, layers can be added or omitted as necessary.
- 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.
- an electrode substance include conductive transparent materials such as metals such as Au, CuI, indium tin oxide (ITO), SnO 2 , and ZnO.
- conductive transparent materials such as metals such as Au, CuI, indium tin oxide (ITO), SnO 2 , and ZnO.
- an amorphous material such as IDIXO (In 2 O 3 —ZnO) capable of forming 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 required (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, Magnesium / aluminum mixtures, magnesium / indium mixtures, aluminum / aluminum oxide (Al 2 O 3 ) mixtures, lithium / aluminum mixtures, aluminum and the like are preferred.
- 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.
- an element in which both the anode and the cathode are transparent is used. Can be produced.
- the light emitting layer is a phosphorescent light emitting layer and 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. Such organometallic complexes are known in the prior art documents and the like, and these can be selected and used.
- Preferable phosphorescent dopants include complexes such as Ir (ppy) 3 having a noble metal element such as Ir as a central metal, complexes such as Ir (bt) 2 ⁇ acac3, and complexes such as PtOEt3. 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 5 to 10% by weight.
- the host material in the light emitting layer it is preferable to use a phosphine oxide derivative represented by the general formula (1).
- the host material other than the phosphine oxide derivative may be used for the light emitting layer.
- a plurality of known host materials may be used in combination.
- the other host material is preferably a compound that has a hole transporting ability and 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
- Tetracarboxylic acid anhydride Tetracarboxylic acid anhydride, phthalocyanine derivatives, metal complexes of 8-quinolinol derivatives, metal phthalocyanines, various metal complexes represented by metal complexes of benzoxazole and benzothiazole derivatives, polysilane compounds, poly (N-vinylcarbazole) derivatives, Examples include 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, and includes a hole injection layer and an electron injection layer, And between the cathode and the light emitting layer or the electron transport layer.
- the injection layer can be provided as necessary.
- the hole blocking layer has a function of an electron transport layer in a broad sense.
- the hole blocking layer has a role of blocking holes from reaching the electron transport layer while transporting electrons, thereby improving the recombination probability of electrons and holes in the light emitting layer.
- the phosphine oxide derivative represented by the general formula (1) for the hole blocking layer
- a known hole blocking layer material is used. It may be used.
- the material of a hole-blocking layer the material of the electron carrying layer mentioned later can be used as needed.
- the electron blocking layer has a function of transporting holes in a broad sense.
- the electron blocking layer has a role to block electrons from reaching the hole transport layer while transporting holes, thereby improving the probability of recombination of electrons and holes in the light emitting layer.
- a material for the electron blocking layer a material for a hole transport layer described later can be used as necessary.
- the thickness of the electron blocking layer according to the present invention 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.
- phosphine oxide derivative represented by the general formula (1) for the exciton blocking layer
- a known material may be used when the phosphine oxide derivative is used for any other organic layer.
- exciton blocking materials include, for example, 1,3-di (9-carbazolyl) benzene (mCP) and bis (2-methyl-8-quinolinolato) -4-phenylphenolatoaluminum (III) (BAlq) Is mentioned.
- 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.
- Examples of hole transport materials that can be used include triazole derivatives, oxadiazole derivatives, imidazole derivatives, polyarylalkane derivatives, pyrazoline derivatives and pyrazolone derivatives, phenylenediamine derivatives, arylamine derivatives, amino-substituted chalcone derivatives, oxazole derivatives, styrylanthracene.
- Derivatives fluorenone derivatives, hydrazone derivatives, stilbene derivatives, silazane derivatives, aniline copolymers, conductive polymer oligomers, particularly thiophene oligomers, etc., including porphyrin compounds, aromatic tertiary amine compounds, and styrylamine compounds Is preferably used, and an aromatic tertiary amine compound is more preferably used.
- 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 electron transport material (which may also serve as a hole blocking material) may have a function of transmitting electrons injected from the cathode to the light emitting layer.
- the phosphine oxide derivative represented by the general formula (1) according to the present invention for the electron transport layer, any one of conventionally known compounds can be selected and used. Examples thereof include substituted fluorene derivatives, diphenylquinone derivatives, thiopyran dioxide derivatives, carbodiimides, fluorenylidenemethane derivatives, anthraquinodimethane and anthrone derivatives, and oxadiazole derivatives.
- a thiadiazole derivative in which the oxygen atom of the oxadiazole ring is substituted with a sulfur atom, or 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.
- the phosphine oxide derivative represented by the general formula (1) is excellent as an electron transporting material, it may be contained in a light emitting layer, an electron transport layer, a hole blocking layer, or an exciton blocking layer.
- the organic EL element of the present invention may be any one of a single element, an element having a structure arranged in an array, and a structure in which an anode and a cathode are arranged in an XY matrix. Since the organic EL device of the present invention utilizes phosphorescence emission, a device having higher emission efficiency and greatly improved driving stability than a conventional device using light emission from a singlet state can be obtained. Excellent performance in multi-color panel applications.
- Comparative Example 1 Each thin film was laminated at a vacuum degree of 4.0 ⁇ 10 ⁇ 4 Pa by a vacuum deposition method on a glass substrate on which an anode made of indium tin oxide (ITO) having a thickness of 110 nm was formed.
- ITO indium tin oxide
- CuPC copper phthalocyanine
- NPD 4,4′-bis [N- (1-naphthyl) -N-phenylamino] biphenyl
- FIrpic 1,3-di (9-carbazolyl) benzene
- mCP 1,3-di (9-carbazolyl) benzene
- FIrpic iridium complex
- iridium (III) bis [2- (4, 6-Difluorophenyl) pyridinate-N, C2 ′] picolinate iridium complex
- FIrpic tris (8-hydroxyquinolinato) aluminum (III) (Alq3) was formed to a thickness of 25 nm as an electron transporting layer.
- lithium fluoride (LiF) was formed to a thickness of 0.5 nm as an electron injection layer on the electron transport layer.
- aluminum (Al) is formed as an electrode on the electron injection layer to a thickness of 170 nm, and an electron injection layer is added between the cathode and the electron transport layer in the device configuration example shown in FIG. An organic EL device was prepared.
- the organic EL element had the light emission characteristics as shown in Table 1.
- the luminance, voltage, and luminous luminous efficiency are 2.5 mA / cm 2
- the luminance half-life is 5.0 mA / cm 2
- the maximum wavelength of the device emission spectrum was 470 nm, indicating that light emission from FIrpic was obtained.
- Example 1 An organic EL device was produced in the same manner as in Comparative Example 1 except that (Compound 18) was used as the host material of the light emitting layer in Comparative Example 1.
- the maximum wavelength of the device emission spectrum was 470 nm, and it was identified that light emission from FIrpic was obtained. Table 1 shows the light emission characteristics.
- Example 2 An organic EL device was produced in the same manner as in Comparative Example 1 except that (Compound 10) was used as the host material of the light emitting layer in Comparative Example 1.
- the maximum wavelength of the device emission spectrum was 470 nm, and it was identified that light emission from FIrpic was obtained. Table 1 shows the light emission characteristics.
- Example 3 An organic EL device was produced in the same manner as in Comparative Example 1 except that (Compound 58) was used as the host material of the light emitting layer in Comparative Example 1.
- the maximum wavelength of the device emission spectrum was 470 nm, and it was identified that light emission from FIrpic was obtained. Table 1 shows the light emission characteristics.
- Comparative Example 2 An organic EL device was produced in the same manner as in Comparative Example 1 except that (Compound 8) was used as the host material of the light emitting layer in Comparative Example 1. The maximum wavelength of the device emission spectrum was 470 nm, and it was identified that light emission from FIrpic was obtained. Table 1 shows the light emission characteristics.
- Comparative Example 3 An organic EL device was produced in the same manner as in Comparative Example 1 except that (Compound 9) was used as the host material of the light emitting layer in Comparative Example 1. The maximum wavelength of the device emission spectrum was 470 nm, and it was identified that light emission from FIrpic was obtained. Table 1 shows the light emission characteristics.
- Example 4 An organic EL device was produced in the same manner as in Comparative Example 1 except that (Compound 18) was used as the material for the electron transport layer in Comparative Example 1.
- the maximum wavelength of the device emission spectrum was 470 nm, and it was identified that light emission from FIrpic was obtained.
- Table 2 shows the light emission characteristics.
- Example 5 In Comparative Example 1, except that after forming the light emitting layer, (compound 18) was formed to a thickness of 10 nm as a material for the exciton blocking layer, and Alq3 was formed to a thickness of 15 nm as a material for the electron transport layer.
- An organic EL device was prepared in the same manner as Comparative Example 1. The obtained organic EL device has a layer structure in which an exciton blocking layer is added between the light emitting layer and the electron transport layer in the organic EL device shown in FIG. The maximum wavelength of the device emission spectrum was 470 nm, and it was identified that light emission from FIrpic was obtained. Table 3 shows the light emission characteristics.
- the lowest unoccupied orbital (LUMO) is large at the phosphine oxide group to which the nitrogen-containing heterocycle is directly bonded, that is, at the site represented by L 1 -P ⁇ O. It is spreading. Therefore, it becomes easy to transfer electrons between molecules and has high electron transport properties.
- the highest occupied orbit (HOMO) exists on NAr 1 Ar 1 outside the molecule, facilitating the exchange of holes between molecules. As a result, the compound exhibits a well-balanced and excellent charge injection and transport property.
- a compound having both a diarylamine and a phosphine oxide has a nitrogen-containing heterocycle directly bonded to the phosphine oxide, so that the electron injecting and transporting properties are improved and the good hole injecting and transporting properties are maintained.
- the driving voltage of the device is reduced and the charge balance in the light emitting layer is improved, so that the recombination region of holes and electrons is widened and the light emission efficiency is improved.
- the phosphorescent host material has the lowest excited triplet state energy high enough to confine the dopant's lowest excited triplet state energy, thus reducing the triplet excitation energy transfer from the dopant to the host molecule. It can be effectively suppressed. From the above points, the organic EL device of the present invention achieves low voltage driving and high luminous efficiency.
- the good electron injecting and transporting property leads to a reduction in device driving voltage and an improvement in luminous efficiency.
- the phosphine oxide derivative since the phosphine oxide derivative has the lowest excited triplet state energy high enough to confine the lowest excited triplet state energy of the dopant, when used as a material for the exciton blocking layer, the phosphine oxide derivative is adjacent to the dopant. The transfer of triplet excitation energy to the layer containing the compound can be effectively suppressed, and high luminous efficiency can be obtained.
- the phosphine oxide derivative exhibits good amorphous characteristics and high thermal stability and is electrochemically stable, an organic EL device having a long driving life and high durability has been realized.
- the organic EL device according to the present invention has practically satisfactory levels in terms of light emission characteristics, driving life and durability, flat panel display (mobile phone display device, in-vehicle display device, OA computer display device, television, etc.), surface light emission, etc. Its technical value is great in applications to light sources (lighting, light sources for copying machines, backlight light sources for liquid crystal displays and instruments), display boards, and sign lamps that make use of the characteristics of the body.
Abstract
Description
Ar1は、独立に炭素数6~20の芳香族炭化水素基又は炭素数3~20の芳香族複素環基であるが、同一の窒素原子に結合している2つのAr1は、直接又は他の原子を介し結合して該窒素を含む含窒素複素環を形成し、該含窒素複素環と共に縮合して縮合環を形成しても良く、上記芳香族炭化水素基又は芳香族複素環基は置換基を有しても良い。
m、n及びpは独立に0~2の整数であり、m+n+pは1~6である。
また、L1と結合する窒素に置換する2つの6員環芳香族炭化水素基又は含窒素6員環芳香族複素環基は、直接又は他の原子を介し結合して該L1と結合する窒素を含む含窒素複素環を形成し、該含窒素複素環と共に縮合して縮合環を形成しても良い。
L1、m、n及びpは、それぞれ一般式(1)のL1、m、n及びpと同意である。
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。
発光層は燐光発光層であり、燐光発光ドーパントとホスト材料を含む。燐光発光ドーパント材料としては、ルテニウム、ロジウム、パラジウム、銀、レニウム、オスミウム、イリジウム、白金及び金から選ばれる少なくとも一つの金属を含む有機金属錯体を含有するものがよい。かかる有機金属錯体は、前記先行技術文献等で公知であり、これらが選択されて使用可能である。
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。
正孔阻止層とは広い意味では電子輸送層の機能を有する。正孔阻止層は電子を輸送しつつ、正孔が電子輸送層へ到達することを阻止する役割があり、これにより発光層中での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、広い意味では正孔を輸送する機能を有する。電子阻止層は正孔を輸送しつつ、電子が正孔輸送層へ到達することを阻止する役割があり、これにより発光層中での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。電子阻止層の材料としては、後述する正孔輸送層の材料を必要に応じて用いることができる。本発明に係る電子阻止層の膜厚は好ましくは3~100nmであり、より好ましくは5~30nmである。
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。
窒素雰囲気下、2,6-ジブロモピリジン14.2 g (0.060 mol)、カルバゾール5.0 g (0.036 mol)、よう化銅(I) 0.17 g (0.0019 mol)、リン酸三カリウム31.8 g(0.15 mol)と脱水1,4-ジオキサン300 mlを室温で撹拌しながら、trans-1,2-シクロヘキサンジアミン1.0 g (0.0088 mol)を加えた後に、100℃で加熱還流しながら6時間撹拌した。反応溶液を室温まで冷却した後に、無機塩をろ別し、溶媒を減圧留去した。残渣をジクロロメタン200 mlに溶解し、蒸留水(2 × 100 ml)で洗浄した。有機層を無水硫酸マグネシウムで乾燥した後に、硫酸マグネシウムをろ別し、溶媒を減圧留去した。得られた残渣を、メタノールを用いて加熱リスラリーにより精製を行い、9-(6-ブロモ-2-ピリジル)カルバゾール8.2 gを得た。
融点299℃、APCI-TOFMS, m/z 777 [M+H]+
2,6-ジブロモピリジンとジフェニルアミンから、合成例1と同様にして化合物10を合成した。
9-(6-ブロモ-2-ピリジル)カルバゾールとジフェニルホスフィン酸クロリドから、合成例1と同様にして化合物58を合成した。
膜厚110 nmの酸化インジウムスズ(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4.0×10-4 Paで積層させた。まず、ITO上に正孔注入層として、銅フタロシアニン(CuPC)を30 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(NPD)を80 nmの厚さに形成した。次に、正孔輸送層上に、発光層のホスト材料として1,3-ジ(9-カルバゾリル)ベンゼン(mCP)と青色燐光材料であるイリジウム錯体[イリジウム(III)ビス[2-(4,6-ジフルオロフェニル)ピリジネート-N,C2’]ピコリネート](FIrpic)とを異なる蒸着源から、共蒸着し、35 nmの厚さに発光層を形成した。FIrpicの濃度は8.0 %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25 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0.5 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170 nmの厚さに形成し、図1に示す素子構成例の陰極と電子輸送層の間に、電子注入層を追加した構成の有機EL素子を作成した。
比較例1における発光層のホスト材料として、(化合物18)を用いた以外は比較例1と同様にして有機EL素子を作成した。素子発光スペクトルの極大波長は470 nmであり、FIrpicからの発光が得られていると同定された。表1に発光特性を示す。
比較例1における発光層のホスト材料として、(化合物10)を用いた以外は比較例1と同様にして有機EL素子を作成した。素子発光スペクトルの極大波長は470 nmであり、FIrpicからの発光が得られていると同定された。表1に発光特性を示す。
比較例1における発光層のホスト材料として、(化合物58)を用いた以外は比較例1と同様にして有機EL素子を作成した。素子発光スペクトルの極大波長は470 nmであり、FIrpicからの発光が得られていると同定された。表1に発光特性を示す。
比較例1における発光層のホスト材料として、(化合物8)を用いた以外は比較例1と同様にして有機EL素子を作成した。素子発光スペクトルの極大波長は470 nmであり、FIrpicからの発光が得られていると同定された。表1に発光特性を示す。
比較例1における発光層のホスト材料として、(化合物9)を用いた以外は比較例1と同様にして有機EL素子を作成した。素子発光スペクトルの極大波長は470 nmであり、FIrpicからの発光が得られていると同定された。表1に発光特性を示す。
比較例1における電子輸送層の材料として、(化合物18)を用いた以外は比較例1と同様にして有機EL素子を作成した。素子発光スペクトルの極大波長は470 nmであり、FIrpicからの発光が得られていると同定された。表2に発光特性を示す。
比較例1において、発光層を形成した後に励起子阻止層の材料として(化合物18)を10 nmの厚さに形成し、電子輸送層の材料としてAlq3を15 nmの厚さに形成した以外は比較例1と同様にして有機EL素子を作成した。得られた有機EL素子は、図1に示す有機EL素子において、発光層と電子輸送層の間に、励起子阻止層が追加された層構成を有する。素子発光スペクトルの極大波長は470 nmであり、FIrpicからの発光が得られていると同定された。表3に発光特性を示す。
また、ホスフィンオキサイド誘導体はドーパントの最低励起三重項状態のエネルギーを閉じ込めるのに十分高い最低励起三重項状態のエネルギーを有しているために、励起子阻止層の材料として用いるとドーパントから隣接する該化合物を含む層への三重項励起エネルギーの移動を効果的に抑えることができ、高い発光効率を得ることができる。
加えて、ホスフィンオキサイド誘導体は良好なアモルファス特性と高い熱安定性を示し、また電気化学的に安定であることから、駆動寿命が長く、耐久性の高い有機EL素子を実現した。
Claims (4)
- 基板上に、陽極、燐光発光層を含む有機層及び陰極が積層されてなる有機電界発光素子において、燐光発光層、電子輸送層、正孔阻止層及び励起子阻止層からなる群れから選ばれる少なくとも一つの層中に、一般式(1)で表されるホスフィンオキサイド誘導体を含有することを特徴とする有機電界発光素子。
式中、L1は独立に直接結合又は下記式(1a)、(1b)又は(1c)で表される芳香族化合物から1~3個の水素を除いた1~3価の芳香族基を表すが、少なくとも1つのL1は直接結合ではない。
Ar1は、独立に炭素数6~20の芳香族炭化水素基又は炭素数3~20の芳香族複素環基であるが、同一の窒素原子に結合している2つのAr1は、直接又は他の原子を介し結合して該窒素を含む含窒素複素環を形成し、該含窒素複素環と共に縮合して縮合環を形成してもよく、また前記芳香族炭化水素又は芳香族複素環基は置換基を有してもよい。
m、n及びpは独立に0~2の整数であり、m+n+pは1~6である。
また、式(1a)、(1b)又は(1c)において、Xはそれぞれ独立して置換若しくは未置換のメチン又は窒素を表し、L1が2価又は3価の芳香族基である場合少なくとも1つは窒素である。Xが置換メチンである場合、置換基はそれぞれ独立して、炭素数1~6のアルキル基、炭素数1~6のアルコキシ基、炭素数3~20のアリールオキシ基、炭素数6~20の芳香族炭化水素基又は炭素数3~20の芳香族複素環基を表す。
- 一般式(1)で表されるホスフィンオキサイド誘導体が、一般式(2)で表されるホスフィンオキサイド誘導体である請求項1に記載の有機電界発光素子。
式中、Yはそれぞれ独立して置換若しくは未置換のメチン又は窒素を表す。Yが置換メチンである場合、置換基はそれぞれ独立して、炭素数1~6のアルキル基、炭素数1~6のアルコキシ基、炭素数3~20のアリールオキシ基、炭素数6~20の芳香族炭化水素基、炭素数3~20の芳香族複素環基、又は炭素数6~14の芳香族炭化水素基若しくは炭素数3~14の芳香族複素環基で置換されたアミノ基を表す。ここで、該アミノ基の窒素原子に結合している芳香族炭化水素基又は芳香族複素環基は、直接又は他の原子を介し結合して該窒素を含む含窒素複素環を形成し、該含窒素複素環と共に縮合して縮合環を形成しても良い。
また、L1と結合する窒素に置換する2つの6員環芳香族炭化水素基又は含窒素6員環芳香族複素環基は、直接又は他の原子を介し結合して該L1と結合する窒素を含む含窒素複素環を形成し、該含窒素複素環と共に縮合して縮合環を形成しても良い。
L1、m、n及びpは、一般式(1)と同意である。 - ホスフィンオキサイド誘導体を含む層が、燐光発光ドーパントを含有する発光層である請求項1に記載の有機電界発光素子。
- ホスフィンオキサイド誘導体を含む層が、燐光発光ドーパントを含有する発光層である請求項2に記載の有機電界発光素子。
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WO2013118507A1 (ja) * | 2012-02-10 | 2013-08-15 | 出光興産株式会社 | 有機エレクトロルミネッセンス素子用材料及びそれを用いた有機エレクトロルミネッセンス素子 |
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EP3537495A1 (en) * | 2018-03-08 | 2019-09-11 | Samsung Display Co., Ltd. | Organic light-emitting device |
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Citations (13)
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 |
JP2002063989A (ja) | 2000-06-08 | 2002-02-28 | Toray Ind Inc | 発光素子 |
JP2003515897A (ja) | 1999-12-01 | 2003-05-07 | ザ、トラスティーズ オブ プリンストン ユニバーシティ | 有機led用燐光性ドーパントとしての式l2mxの錯体 |
JP2003317965A (ja) | 2002-04-25 | 2003-11-07 | Konica Minolta Holdings Inc | 有機エレクトロルミネッセンス素子および表示装置 |
JP2004095221A (ja) | 2002-08-29 | 2004-03-25 | Toray Ind Inc | 発光素子 |
JP2004204140A (ja) | 2002-12-26 | 2004-07-22 | Toray Ind Inc | 発光素子用材料およびそれを用いた発光素子 |
JP2006073581A (ja) * | 2004-08-31 | 2006-03-16 | Toray Ind Inc | 発光素子材料および発光素子 |
JP2007129206A (ja) | 2005-10-04 | 2007-05-24 | Fujifilm Corp | 有機電界発光素子 |
WO2007137725A1 (de) | 2006-05-31 | 2007-12-06 | Merck Patent Gmbh | Neue materialien für organische elektrolumineszenzvorrichtungen |
JP2008244012A (ja) | 2007-03-26 | 2008-10-09 | Fujifilm Corp | 有機電界発光素子 |
JP2008244013A (ja) * | 2007-03-26 | 2008-10-09 | Fujifilm Corp | 有機電界発光素子 |
WO2009118087A1 (de) * | 2008-03-25 | 2009-10-01 | Merck Patent Gmbh | Metallkomplexe |
WO2009136586A1 (ja) * | 2008-05-08 | 2009-11-12 | 新日鐵化学株式会社 | 有機電界発光素子用化合物及び有機電界発光素子 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5230218B2 (ja) * | 2007-03-26 | 2013-07-10 | ユー・ディー・シー アイルランド リミテッド | 有機電界発光素子 |
JP5081010B2 (ja) * | 2007-03-26 | 2012-11-21 | 富士フイルム株式会社 | 有機電界発光素子 |
JP2009227604A (ja) * | 2008-03-21 | 2009-10-08 | Chemiprokasei Kaisha Ltd | 新規3,6−二置換カルバゾール誘導体、それよりなるホスト材料およびそれを含有する有機el素子 |
JP5495578B2 (ja) * | 2009-02-13 | 2014-05-21 | ケミプロ化成株式会社 | 新規なトリアリールホスフィンオキシド誘導体、それよりなるホスト材料およびそれを含む有機エレクトロルミネッセンス素子 |
KR101092170B1 (ko) * | 2009-05-27 | 2011-12-13 | 단국대학교 산학협력단 | 카바졸계 포스핀 옥사이드 화합물 및 이를 포함하는 유기 전계 발광 소자 |
-
2010
- 2010-02-10 TW TW99104190A patent/TWI466980B/zh not_active IP Right Cessation
- 2010-02-25 WO PCT/JP2010/052966 patent/WO2010098386A1/ja active Application Filing
- 2010-02-25 CN CN201080009259.2A patent/CN102326272B/zh not_active Expired - Fee Related
- 2010-02-25 US US13/146,238 patent/US8722208B2/en not_active Expired - Fee Related
- 2010-02-25 JP JP2011501639A patent/JP5395161B2/ja not_active Expired - Fee Related
- 2010-02-25 EP EP10746265.7A patent/EP2403029B1/en not_active Not-in-force
- 2010-02-25 KR KR1020117022104A patent/KR101631079B1/ko active IP Right Grant
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003515897A (ja) | 1999-12-01 | 2003-05-07 | ザ、トラスティーズ オブ プリンストン ユニバーシティ | 有機led用燐光性ドーパントとしての式l2mxの錯体 |
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 |
JP2002063989A (ja) | 2000-06-08 | 2002-02-28 | Toray Ind Inc | 発光素子 |
JP2003317965A (ja) | 2002-04-25 | 2003-11-07 | Konica Minolta Holdings Inc | 有機エレクトロルミネッセンス素子および表示装置 |
JP2004095221A (ja) | 2002-08-29 | 2004-03-25 | Toray Ind Inc | 発光素子 |
JP2004204140A (ja) | 2002-12-26 | 2004-07-22 | Toray Ind Inc | 発光素子用材料およびそれを用いた発光素子 |
JP2006073581A (ja) * | 2004-08-31 | 2006-03-16 | Toray Ind Inc | 発光素子材料および発光素子 |
JP2007129206A (ja) | 2005-10-04 | 2007-05-24 | Fujifilm Corp | 有機電界発光素子 |
WO2007137725A1 (de) | 2006-05-31 | 2007-12-06 | Merck Patent Gmbh | Neue materialien für organische elektrolumineszenzvorrichtungen |
JP2008244012A (ja) | 2007-03-26 | 2008-10-09 | Fujifilm Corp | 有機電界発光素子 |
JP2008244013A (ja) * | 2007-03-26 | 2008-10-09 | Fujifilm Corp | 有機電界発光素子 |
WO2009118087A1 (de) * | 2008-03-25 | 2009-10-01 | Merck Patent Gmbh | Metallkomplexe |
WO2009136586A1 (ja) * | 2008-05-08 | 2009-11-12 | 新日鐵化学株式会社 | 有機電界発光素子用化合物及び有機電界発光素子 |
Non-Patent Citations (4)
Title |
---|
APPLIED PHYSICS LETTERS, vol. 82, 2003, pages 2422 - 2424 |
APPLIED PHYSICS LETTERS, vol. 83, 2003, pages 569 - 571 |
E.POLIKARPOV ET AL.: "Emission zone control in blue organic electrophosphorescent devices through chemical modification of host materials.", APPL.PHYS.LETT., vol. 96, 4 February 2010 (2010-02-04), pages 053306 - 2, XP012132080 * |
See also references of EP2403029A4 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7981522B2 (en) * | 2003-12-05 | 2011-07-19 | Merck Patent Gmbh | Organic electroluminescent element |
WO2013118507A1 (ja) * | 2012-02-10 | 2013-08-15 | 出光興産株式会社 | 有機エレクトロルミネッセンス素子用材料及びそれを用いた有機エレクトロルミネッセンス素子 |
WO2014024856A1 (ja) * | 2012-08-07 | 2014-02-13 | 国立大学法人九州大学 | 有機エレクトロルミネッセンス素子、並びに、それに用いる化合物、キャリア輸送材料およびホスト材料 |
US10547019B2 (en) | 2014-10-09 | 2020-01-28 | Nippon Chemical Industrial Co., Ltd. | Electrochemical luminescent cell and composition for forming luminescent layer of electrochemical luminescent cell |
KR20190107264A (ko) * | 2018-03-09 | 2019-09-19 | 삼성디스플레이 주식회사 | 유기금속 화합물 및 이를 포함한 유기 발광 소자 |
KR102654922B1 (ko) * | 2018-03-09 | 2024-04-05 | 삼성디스플레이 주식회사 | 유기금속 화합물 및 이를 포함한 유기 발광 소자 |
Also Published As
Publication number | Publication date |
---|---|
CN102326272B (zh) | 2014-07-16 |
JP5395161B2 (ja) | 2014-01-22 |
EP2403029B1 (en) | 2013-11-27 |
EP2403029A4 (en) | 2012-08-08 |
KR101631079B1 (ko) | 2016-06-16 |
US8722208B2 (en) | 2014-05-13 |
US20110284828A1 (en) | 2011-11-24 |
TWI466980B (zh) | 2015-01-01 |
CN102326272A (zh) | 2012-01-18 |
TW201042000A (en) | 2010-12-01 |
JPWO2010098386A1 (ja) | 2012-09-06 |
EP2403029A1 (en) | 2012-01-04 |
KR20110129421A (ko) | 2011-12-01 |
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