JP2016526291A - 有機光電子素子用発光材料、有機光電子素子および表示装置 - Google Patents
有機光電子素子用発光材料、有機光電子素子および表示装置 Download PDFInfo
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- JP2016526291A JP2016526291A JP2016513851A JP2016513851A JP2016526291A JP 2016526291 A JP2016526291 A JP 2016526291A JP 2016513851 A JP2016513851 A JP 2016513851A JP 2016513851 A JP2016513851 A JP 2016513851A JP 2016526291 A JP2016526291 A JP 2016526291A
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- 239000000463 material Substances 0.000 title claims abstract description 56
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- 239000000126 substance Substances 0.000 claims abstract description 21
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- 125000000008 (C1-C10) alkyl group Chemical group 0.000 claims description 10
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- 125000003118 aryl group Chemical group 0.000 claims description 10
- 229910052805 deuterium Inorganic materials 0.000 claims description 10
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- 125000001072 heteroaryl group Chemical group 0.000 claims description 9
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- 125000000753 cycloalkyl group Chemical group 0.000 claims description 5
- 125000005843 halogen group Chemical group 0.000 claims description 5
- 125000000592 heterocycloalkyl group Chemical group 0.000 claims description 5
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- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 5
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- 229910052736 halogen Inorganic materials 0.000 claims description 3
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- 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 23
- 238000000921 elemental analysis Methods 0.000 description 19
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- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
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- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 description 6
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 6
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 6
- 235000011056 potassium acetate Nutrition 0.000 description 6
- 125000001424 substituent group Chemical group 0.000 description 6
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 6
- DQXKOHDUMJLXKH-PHEQNACWSA-N (e)-n-[2-[2-[[(e)-oct-2-enoyl]amino]ethyldisulfanyl]ethyl]oct-2-enamide Chemical compound CCCCC\C=C\C(=O)NCCSSCCNC(=O)\C=C\CCCCC DQXKOHDUMJLXKH-PHEQNACWSA-N 0.000 description 5
- -1 benzthiazinyl group Chemical group 0.000 description 5
- 125000005647 linker group Chemical group 0.000 description 5
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- VQGHOUODWALEFC-UHFFFAOYSA-N 2-phenylpyridine Chemical compound C1=CC=CC=C1C1=CC=CC=N1 VQGHOUODWALEFC-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 125000000732 arylene group Chemical group 0.000 description 4
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- SZUVGFMDDVSKSI-WIFOCOSTSA-N (1s,2s,3s,5r)-1-(carboxymethyl)-3,5-bis[(4-phenoxyphenyl)methyl-propylcarbamoyl]cyclopentane-1,2-dicarboxylic acid Chemical compound O=C([C@@H]1[C@@H]([C@](CC(O)=O)([C@H](C(=O)N(CCC)CC=2C=CC(OC=3C=CC=CC=3)=CC=2)C1)C(O)=O)C(O)=O)N(CCC)CC(C=C1)=CC=C1OC1=CC=CC=C1 SZUVGFMDDVSKSI-WIFOCOSTSA-N 0.000 description 3
- OOKAZRDERJMRCJ-KOUAFAAESA-N (3r)-7-[(1s,2s,4ar,6s,8s)-2,6-dimethyl-8-[(2s)-2-methylbutanoyl]oxy-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl]-3-hydroxy-5-oxoheptanoic acid Chemical compound C1=C[C@H](C)[C@H](CCC(=O)C[C@@H](O)CC(O)=O)C2[C@@H](OC(=O)[C@@H](C)CC)C[C@@H](C)C[C@@H]21 OOKAZRDERJMRCJ-KOUAFAAESA-N 0.000 description 3
- 125000000923 (C1-C30) alkyl group Chemical group 0.000 description 3
- UNILWMWFPHPYOR-KXEYIPSPSA-M 1-[6-[2-[3-[3-[3-[2-[2-[3-[[2-[2-[[(2r)-1-[[2-[[(2r)-1-[3-[2-[2-[3-[[2-(2-amino-2-oxoethoxy)acetyl]amino]propoxy]ethoxy]ethoxy]propylamino]-3-hydroxy-1-oxopropan-2-yl]amino]-2-oxoethyl]amino]-3-[(2r)-2,3-di(hexadecanoyloxy)propyl]sulfanyl-1-oxopropan-2-yl Chemical compound O=C1C(SCCC(=O)NCCCOCCOCCOCCCNC(=O)COCC(=O)N[C@@H](CSC[C@@H](COC(=O)CCCCCCCCCCCCCCC)OC(=O)CCCCCCCCCCCCCCC)C(=O)NCC(=O)N[C@H](CO)C(=O)NCCCOCCOCCOCCCNC(=O)COCC(N)=O)CC(=O)N1CCNC(=O)CCCCCN\1C2=CC=C(S([O-])(=O)=O)C=C2CC/1=C/C=C/C=C/C1=[N+](CC)C2=CC=C(S([O-])(=O)=O)C=C2C1 UNILWMWFPHPYOR-KXEYIPSPSA-M 0.000 description 3
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- 125000003785 benzimidazolyl group Chemical group N1=C(NC2=C1C=CC=C2)* 0.000 description 1
- 125000000499 benzofuranyl group Chemical group O1C(=CC2=C1C=CC=C2)* 0.000 description 1
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- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
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- 238000005520 cutting process Methods 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
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- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000004770 highest occupied molecular orbital Methods 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 description 1
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- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 125000001041 indolyl group Chemical group 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
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- 125000002183 isoquinolinyl group Chemical group C1(=NC=CC2=CC=CC=C12)* 0.000 description 1
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- 229910052749 magnesium Inorganic materials 0.000 description 1
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- 125000002950 monocyclic group Chemical group 0.000 description 1
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- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- 125000001791 phenazinyl group Chemical group C1(=CC=CC2=NC3=CC=CC=C3N=C12)* 0.000 description 1
- 125000001484 phenothiazinyl group Chemical group C1(=CC=CC=2SC3=CC=CC=C3NC12)* 0.000 description 1
- 125000001644 phenoxazinyl group Chemical group C1(=CC=CC=2OC3=CC=CC=C3NC12)* 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 125000001935 tetracenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12)* 0.000 description 1
- 125000001113 thiadiazolyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 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 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 125000003960 triphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C3=CC=CC=C3C12)* 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
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- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
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- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
- C07D213/16—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing only one pyridine ring
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- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
- C07D213/22—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing two or more pyridine rings directly linked together, e.g. bipyridyl
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- C07D239/26—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
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Abstract
Description
Zはそれぞれ独立して、NまたはCRaであり、
Zのうちの少なくとも1つはNであり、
R1〜R10およびRaはそれぞれ独立して、水素、重水素、置換もしくは非置換のC1〜C10のアルキル基、置換もしくは非置換のC6〜C12のアリール基、またはこれらの組み合わせであり、
Lは置換もしくは非置換のフェニレン基、置換もしくは非置換のビフェニレン基、または置換もしくは非置換のターフェニレン基であり、
n1〜n3はそれぞれ独立して、0または1であり、
n1+n2+n3≧1である。
Zはそれぞれ独立して、NまたはCRaであり、
Zのうちの少なくとも1つはNであり、
R1〜R10およびRaはそれぞれ独立して、水素、重水素、置換もしくは非置換のC1〜C10のアルキル基、置換もしくは非置換のC6〜C12のアリール基、またはこれらの組み合わせであり、
Lは置換もしくは非置換のフェニレン基、置換もしくは非置換のビフェニレン基、または置換もしくは非置換のターフェニレン基であり、
n1〜n3はそれぞれ独立して、0または1であり、
n1+n2+n3≧1である。
Z、R1〜R10およびRa、Lおよびn1〜n3は上述した通りである。
代表合成法
代表合成法は、下記代表反応式の通りである。
合成例1:中間体I−1の合成
Elemental Analysis:C,81%;H,7%
合成例2:中間体I−2の合成
Elemental Analysis:C,85%;H,5%
合成例3:中間体I−3の合成
Elemental Analysis:C,84%;H,6%
合成例4:中間体I−4の合成
Elemental Analysis:C,75%;H,4%
合成例5:中間体I−5の合成
Elemental Analysis:C,84%;H,6%
合成例6:中間体I−6の合成
Elemental Analysis:C,78%;H,4%
合成例7:中間体I−7の合成
Elemental Analysis:C,85%;H,6%
合成例8:中間体I−8の合成
Elemental Analysis:C,78%;H,4%
合成例9:中間体I−9の合成
Elemental Analysis:C,85%;H,6%
合成例10:中間体I−10の合成
Elemental Analysis:C,81%;H,4%
合成例11:中間体I−11の合成
Elemental Analysis:C,87%;H,6%
最終化合物の合成
合成例12:化合物1の合成
Elemental Analysis:C,86%;H,5%
合成例13:化合物13の合成
Elemental Analysis:C,92%;H,5%
合成例14:化合物14の合成
Elemental Analysis:C,90%;H,5%
合成例15:化合物15の合成
Elemental Analysis:C,87%;H,5%
合成例16:化合物24の合成
Elemental Analysis:C,87%;H,5%
合成例17:化合物33の合成
Elemental Analysis:C,88%;H,5%
合成例18:化合物69の合成
Elemental Analysis:C,88%;H,5%
合成例19:化合物87の合成
Elemental Analysis:C,89%;H,5%
有機発光素子の作製
実施例1
合成例12で得られた化合物1を発光層のホストとして用い、Ir(PPy)3を発光層のドーパントとして用いて、有機発光素子を作製した。
合成例12の化合物1の代わりに、合成例13の化合物13を使用したことを除いては、実施例1と同様の方法で有機発光素子を製造した。
合成例12の化合物1の代わりに、合成例14の化合物14を使用したことを除いては、実施例1と同様の方法で有機発光素子を製造した。
合成例12の化合物1の代わりに、合成例15の化合物15を使用したことを除いては、実施例1と同様の方法で有機発光素子を製造した。
合成例12の化合物1の代わりに、合成例16の化合物24を使用したことを除いては、実施例1と同様の方法で有機発光素子を製造した。
合成例12の化合物1の代わりに、合成例17の化合物33を使用したことを除いては、実施例1と同様の方法で有機発光素子を製造した。
合成例12の化合物1の代わりに、合成例18の化合物69を使用したことを除いては、実施例1と同様の方法で有機発光素子を製造した。
合成例12の化合物1の代わりに、合成例19の化合物87を使用したことを除いては、実施例1と同様の方法で有機発光素子を製造した。
合成例12の化合物1の代わりに、下記構造のCBPを使用したことを除いては、実施例1と同様の方法で有機発光素子を製造した。
合成例12の化合物1の代わりに、下記構造のHOST1を使用したことを除いては、実施例1と同様の方法で有機発光素子を製造した。
合成例12の化合物1の代わりに、下記構造のHOST2を使用したことを除いては、実施例1と同様の方法で有機発光素子を製造した。
実施例1〜8と、比較例1〜3による有機発光素子の電圧に応じた電流密度の変化、輝度変化および発光効率を測定した。
製造された有機発光素子に対して、電圧を0Vから10Vまで上昇させながら、電流−電圧計(Keithley2400)を用いて単位素子に流れる電流値を測定し、測定された電流値を面積で割って、結果を得た。
製造された有機発光素子に対して、電圧を0Vから10Vまで上昇させながら、輝度計(Minolta Cs−1000A)を用いてその時の輝度を測定して、結果を得た。
前記(1)および(2)から測定された輝度と電流密度および電圧を用いて、同一の電流密度(10mA/cm2)の電流効率(cd/A)を計算した。
輝度(cd/m2)を5000cd/m2に維持し、電流効率(cd/A)が90%に減少する時間を測定して、結果を得た。
Claims (13)
- 下記化学式1で表される有機光電子素子用発光材料:
Zはそれぞれ独立して、NまたはCRaであり、
Zのうちの少なくとも1つはNであり、
R1〜R10およびRaはそれぞれ独立して、水素、重水素、置換もしくは非置換のC1〜C10のアルキル基、置換もしくは非置換のC6〜C12のアリール基、またはこれらの組み合わせであり、
Lは置換もしくは非置換のフェニレン基、置換もしくは非置換のビフェニレン基、または置換もしくは非置換のターフェニレン基であり、
n1〜n3はそれぞれ独立して、0または1であり、
n1+n2+n3≧1である。 - 下記化学式1−Iまたは化学式1−IIで表される、請求項1に記載の有機光電子素子用発光材料:
Zはそれぞれ独立して、NまたはCRaであり、
Zのうちの少なくとも1つはNであり、
R1〜R10およびRaはそれぞれ独立して、水素、重水素、置換もしくは非置換のC1〜C10のアルキル基、置換もしくは非置換のC6〜C12のアリール基、またはこれらの組み合わせであり、
Lは置換もしくは非置換のフェニレン基、置換もしくは非置換のビフェニレン基、または置換もしくは非置換のターフェニレン基であり、
n1〜n3はそれぞれ独立して、0または1であり、
n1+n2+n3≧1である。 - 前記Lは折れ(kink)構造の置換もしくは非置換のフェニレン基、折れ構造の置換もしくは非置換のビフェニレン基、または折れ構造の置換もしくは非置換のターフェニレン基である、請求項1に記載の有機光電子素子用発光材料。
- 前記Lは、下記グループ1に挙げられた置換もしくは非置換の基から選択された1つである、請求項3に記載の有機光電子素子用発光材料:
- 前記発光材料は、少なくとも2つの折れ構造を有する、請求項1に記載の有機光電子素子用発光材料。
- 前記発光材料は、下記化学式1aまたは1bで表される、請求項1に記載の有機光電子素子用発光材料:
Zはそれぞれ独立して、NまたはCRaであり、
Zのうちの少なくとも1つはNであり、
R1〜R10およびRaはそれぞれ独立して、水素、重水素、置換もしくは非置換のC1〜C10のアルキル基、置換もしくは非置換のC6〜C12のアリール基、またはこれらの組み合わせである。 - 前記発光材料は、下記化学式1c〜1tのうちのいずれか1つで表される、請求項1に記載の有機光電子素子用発光材料:
Zはそれぞれ独立して、NまたはCRaであり、
R1〜R10およびRaはそれぞれ独立して、水素、重水素、置換もしくは非置換のC1〜C10のアルキル基、置換もしくは非置換のC6〜C12のアリール基、またはこれらの組み合わせであり、
R11〜R14、R17〜R20、R23〜R26およびR36〜R38はそれぞれ独立して、水素、重水素、置換もしくは非置換のC1〜C10のアルキル基、置換もしくは非置換のC3〜C30のシクロアルキル基、置換もしくは非置換のC3〜C30のヘテロシクロアルキル基、置換もしくは非置換のC6〜C30のアリール基、置換もしくは非置換のC2〜C30のヘテロアリール基、置換もしくは非置換のアミン基、置換もしくは非置換のC6〜C30のアリールアミン基、置換もしくは非置換のC6〜C30のヘテロアリールアミン基、置換もしくは非置換のC1〜C30のアルコキシ基、ハロゲン基、ハロゲン含有基、シアノ基、ヒドロキシル基、アミノ基、ニトロ基、カルボキシル基、フェロセニル基、またはこれらの組み合わせである。 - 下記グループ2に挙げられた、請求項1に記載の有機光電子素子用発光材料。
- −2.0〜−2.5eVのLUMOエネルギーを有する、請求項1に記載の有機光電子素子用発光材料。
- 互いに向き合う陽極および陰極と、
前記陽極と前記陰極との間に位置し、請求項1〜9のいずれか1項に記載の発光材料を含む発光層とを含む有機光電子素子。 - 前記発光材料は、前記発光層のホストとして含まれ、
前記発光層は、ドーパントをさらに含む、請求項10に記載の有機光電子素子。 - 正孔注入層、正孔輸送層、電子阻止層、電子輸送層、電子注入層、および正孔阻止層から選択された少なくとも1つの補助層をさらに含む、請求項10に記載の有機光電子素子。
- 請求項10に記載の有機光電子素子を含む表示装置。
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US9520567B2 (en) | 2016-12-13 |
WO2014185595A1 (ko) | 2014-11-20 |
KR20140135525A (ko) | 2014-11-26 |
CN105143398B (zh) | 2017-12-19 |
US20150340618A1 (en) | 2015-11-26 |
TW201444951A (zh) | 2014-12-01 |
TWI583774B (zh) | 2017-05-21 |
JP6431530B2 (ja) | 2018-11-28 |
CN105143398A (zh) | 2015-12-09 |
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