CN113072560B - 一种咔唑衍生物及其应用 - Google Patents
一种咔唑衍生物及其应用 Download PDFInfo
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- CN113072560B CN113072560B CN202110383584.5A CN202110383584A CN113072560B CN 113072560 B CN113072560 B CN 113072560B CN 202110383584 A CN202110383584 A CN 202110383584A CN 113072560 B CN113072560 B CN 113072560B
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- organic electroluminescent
- carbazole derivative
- organic
- electroluminescent element
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- 125000000609 carbazolyl group Chemical class C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 title claims abstract 8
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000010410 layer Substances 0.000 claims description 59
- 125000003118 aryl group Chemical group 0.000 claims description 29
- 125000004432 carbon atom Chemical group C* 0.000 claims description 18
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 229910052805 deuterium Inorganic materials 0.000 claims description 6
- 239000012044 organic layer Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 230000005669 field effect Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 description 33
- -1 aromatic radicals Chemical class 0.000 description 17
- 150000001716 carbazoles Chemical class 0.000 description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 150000003254 radicals Chemical class 0.000 description 12
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 8
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 125000005843 halogen group Chemical group 0.000 description 7
- 125000001072 heteroaryl group Chemical group 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 125000002560 nitrile group Chemical group 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000741 silica gel Substances 0.000 description 6
- 229910002027 silica gel Inorganic materials 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 125000003342 alkenyl group Chemical group 0.000 description 5
- 125000004404 heteroalkyl group Chemical group 0.000 description 5
- 230000005525 hole transport Effects 0.000 description 5
- 125000002950 monocyclic group Chemical group 0.000 description 5
- 125000001424 substituent group Chemical group 0.000 description 5
- 238000006467 substitution reaction Methods 0.000 description 5
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 4
- 125000000304 alkynyl group Chemical group 0.000 description 4
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 4
- 125000004431 deuterium atom Chemical group 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 4
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 4
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 4
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 4
- 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 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 3
- 125000005605 benzo group Chemical group 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000001975 deuterium Chemical group 0.000 description 3
- 238000005401 electroluminescence Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
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- 125000005842 heteroatom Chemical group 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical compound C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 description 2
- WUYYVOWEBMOELQ-UHFFFAOYSA-N 1-bromodibenzofuran Chemical compound O1C2=CC=CC=C2C2=C1C=CC=C2Br WUYYVOWEBMOELQ-UHFFFAOYSA-N 0.000 description 2
- UFOVULIWACVAAC-UHFFFAOYSA-N 1-ethynyl-2-methoxybenzene Chemical group COC1=CC=CC=C1C#C UFOVULIWACVAAC-UHFFFAOYSA-N 0.000 description 2
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 2
- TZMSYXZUNZXBOL-UHFFFAOYSA-N 10H-phenoxazine Chemical compound C1=CC=C2NC3=CC=CC=C3OC2=C1 TZMSYXZUNZXBOL-UHFFFAOYSA-N 0.000 description 2
- HNZUKQQNZRMNGS-UHFFFAOYSA-N 2-(3-bromophenyl)-4,6-diphenyl-1,3,5-triazine Chemical compound BrC1=CC=CC(C=2N=C(N=C(N=2)C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 HNZUKQQNZRMNGS-UHFFFAOYSA-N 0.000 description 2
- DDGPPAMADXTGTN-UHFFFAOYSA-N 2-chloro-4,6-diphenyl-1,3,5-triazine Chemical compound N=1C(Cl)=NC(C=2C=CC=CC=2)=NC=1C1=CC=CC=C1 DDGPPAMADXTGTN-UHFFFAOYSA-N 0.000 description 2
- ALGIYXGLGIECNT-UHFFFAOYSA-N 3h-benzo[e]indole Chemical compound C1=CC=C2C(C=CN3)=C3C=CC2=C1 ALGIYXGLGIECNT-UHFFFAOYSA-N 0.000 description 2
- KDCGOANMDULRCW-UHFFFAOYSA-N 7H-purine Chemical compound N1=CNC2=NC=NC2=C1 KDCGOANMDULRCW-UHFFFAOYSA-N 0.000 description 2
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 description 2
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 2
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 2
- 125000004104 aryloxy group Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
- 235000010290 biphenyl Nutrition 0.000 description 2
- JNGZXGGOCLZBFB-IVCQMTBJSA-N compound E Chemical compound N([C@@H](C)C(=O)N[C@@H]1C(N(C)C2=CC=CC=C2C(C=2C=CC=CC=2)=N1)=O)C(=O)CC1=CC(F)=CC(F)=C1 JNGZXGGOCLZBFB-IVCQMTBJSA-N 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 125000001162 cycloheptenyl group Chemical group C1(=CCCCCC1)* 0.000 description 2
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 125000000596 cyclohexenyl group Chemical group C1(=CCCCC1)* 0.000 description 2
- 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 2
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 2
- TXCDCPKCNAJMEE-UHFFFAOYSA-N dibenzofuran Chemical compound C1=CC=C2C3=CC=CC=C3OC2=C1 TXCDCPKCNAJMEE-UHFFFAOYSA-N 0.000 description 2
- IYYZUPMFVPLQIF-UHFFFAOYSA-N dibenzothiophene Chemical compound C1=CC=C2C3=CC=CC=C3SC2=C1 IYYZUPMFVPLQIF-UHFFFAOYSA-N 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RMBPEFMHABBEKP-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2C3=C[CH]C=CC3=CC2=C1 RMBPEFMHABBEKP-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 125000005553 heteroaryloxy group Chemical group 0.000 description 2
- 238000001840 matrix-assisted laser desorption--ionisation time-of-flight mass spectrometry Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N o-biphenylenemethane Natural products C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- RDOWQLZANAYVLL-UHFFFAOYSA-N phenanthridine Chemical compound C1=CC=C2C3=CC=CC=C3C=NC2=C1 RDOWQLZANAYVLL-UHFFFAOYSA-N 0.000 description 2
- 229950000688 phenothiazine Drugs 0.000 description 2
- LVTJOONKWUXEFR-FZRMHRINSA-N protoneodioscin Natural products O(C[C@@H](CC[C@]1(O)[C@H](C)[C@@H]2[C@]3(C)[C@H]([C@H]4[C@@H]([C@]5(C)C(=CC4)C[C@@H](O[C@@H]4[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@@H](O)[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@H](CO)O4)CC5)CC3)C[C@@H]2O1)C)[C@H]1[C@H](O)[C@H](O)[C@H](O)[C@@H](CO)O1 LVTJOONKWUXEFR-FZRMHRINSA-N 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
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- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 description 2
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- VEPOHXYIFQMVHW-XOZOLZJESA-N 2,3-dihydroxybutanedioic acid (2S,3S)-3,4-dimethyl-2-phenylmorpholine Chemical compound OC(C(O)C(O)=O)C(O)=O.C[C@H]1[C@@H](OCCN1C)c1ccccc1 VEPOHXYIFQMVHW-XOZOLZJESA-N 0.000 description 1
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- 125000004493 2-methylbut-1-yl group Chemical group CC(C*)CC 0.000 description 1
- DMEVMYSQZPJFOK-UHFFFAOYSA-N 3,4,5,6,9,10-hexazatetracyclo[12.4.0.02,7.08,13]octadeca-1(18),2(7),3,5,8(13),9,11,14,16-nonaene Chemical compound N1=NN=C2C3=CC=CC=C3C3=CC=NN=C3C2=N1 DMEVMYSQZPJFOK-UHFFFAOYSA-N 0.000 description 1
- CPDDXQJCPYHULE-UHFFFAOYSA-N 4,5,14,16-tetrazapentacyclo[9.7.1.12,6.015,19.010,20]icosa-1(18),2,4,6,8,10(20),11(19),12,14,16-decaene Chemical group C1=CC(C2=CC=CC=3C2=C2C=NN=3)=C3C2=CC=NC3=N1 CPDDXQJCPYHULE-UHFFFAOYSA-N 0.000 description 1
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- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 description 1
- SLIUAWYAILUBJU-UHFFFAOYSA-N pentacene Chemical compound C1=CC=CC2=CC3=CC4=CC5=CC=CC=C5C=C4C=C3C=C21 SLIUAWYAILUBJU-UHFFFAOYSA-N 0.000 description 1
- 125000005981 pentynyl group Chemical group 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
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- 229910052698 phosphorus Inorganic materials 0.000 description 1
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 1
- CPNGPNLZQNNVQM-UHFFFAOYSA-N pteridine Chemical compound N1=CN=CC2=NC=CN=C21 CPNGPNLZQNNVQM-UHFFFAOYSA-N 0.000 description 1
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- GDISDVBCNPLSDU-UHFFFAOYSA-N pyrido[2,3-g]quinoline Chemical compound C1=CC=NC2=CC3=CC=CN=C3C=C21 GDISDVBCNPLSDU-UHFFFAOYSA-N 0.000 description 1
- JWVCLYRUEFBMGU-UHFFFAOYSA-N quinazoline Chemical compound N1=CN=CC2=CC=CC=C21 JWVCLYRUEFBMGU-UHFFFAOYSA-N 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
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- 238000007650 screen-printing Methods 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
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
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- 238000004528 spin coating Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000010189 synthetic method Methods 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
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
- 150000003536 tetrazoles Chemical class 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 125000005259 triarylamine group Chemical group 0.000 description 1
- TUQOTMZNTHZOKS-UHFFFAOYSA-N tributylphosphine Chemical compound CCCCP(CCCC)CCCC TUQOTMZNTHZOKS-UHFFFAOYSA-N 0.000 description 1
- 125000005580 triphenylene group Chemical group 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/12—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains three hetero rings
- C07D491/14—Ortho-condensed systems
- C07D491/153—Ortho-condensed systems the condensed system containing two rings with oxygen as ring hetero atom and one ring with nitrogen as ring hetero atom
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- C07B59/00—Introduction of isotopes of elements into organic compounds ; Labelled organic compounds per se
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- C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
- C07D495/12—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains three hetero rings
- C07D495/14—Ortho-condensed systems
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- C07D519/00—Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
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- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/622—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing four rings, e.g. pyrene
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- H10K85/649—Aromatic compounds comprising a hetero atom
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- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
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- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6574—Polycyclic condensed heteroaromatic hydrocarbons comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes
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- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
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- C09K2211/1003—Carbocyclic compounds
- C09K2211/1011—Condensed systems
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- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1029—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom
- C09K2211/1033—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom with oxygen
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Abstract
本发明涉及一系列咔唑衍生物及其应用，所述咔唑衍生物的结构式如式(I)所示，本发明所述的咔唑衍生物具有较高的稳定性和三重态能级，适宜作为有机电致发光元件用材料使用，含有所述的咔唑衍生物的有机电致发光元件用材料，具有启动电压低，发光效率和亮度高的特点。
Description
技术领域
本发明属于有机电致发光元件用材料技术领域，具体涉及一种咔唑衍生物及其应用。
背景技术
最近几年有机电致发光显示技术己趋于成熟，一些产品已进入市场，但在产业化时程中，仍有许多问题亟待解决，特别是用于制作元件的各种有机材料，其载流子注入、传输性能，材料电发光性能、使用寿命、色纯度、各种材料之间及与各电极之间的匹配等，尚有许多问题还未解决。尤其是发光元件在发光效率和使用寿命方面还达不到实用化要求，这大大限制了OLED技术的发展。
有机电致发光主要分为荧光和磷光，但根据自旋量子统计理论，单重态激子和三重态激子的概率为1:3，即来自单重态激子辐射跃迁的荧光的理论极限为25％，三重态激子辐射跃迁的荧光的理论极限为75％。如何利用75％的三线态激子的能量成为当务之急。1997年Forrest等发现磷光电致发光现象突破了有机电致发光材料量子效率25％效率的限制，引起人们对金属配合物磷光材料的广泛关注。从此，人们对磷光材料进行大量的研究。
鉴于以上原因，特提出本发明。
发明内容
为了解决现有技术存在的以上问题，本发明提供了一种新型的咔唑衍生物，本发明的咔唑衍生物作为有机电致发光元件用材料的原料，能够提供启动电压降低、发光效率高、亮度提高的有机电致发光元件用材料以及有机电致发光元件。
为了实现上述目的，本发明采用如下技术方案：
一种咔唑衍生物，所述咔唑衍生物的结构式如式(I)所示：
其中，任意两个相邻的基团W1、W2、W3、W4代表下式(II)的基团，
其中，Z在每次出现时相同或不同地代表CR9或N，并且^指示式I中的相应的相邻基团W1和W2、W2和W3，或W3和W4；
T1、T2表示O、S、NAr2或CR10R11；
R1～R11相同或者不同，选自氢、氘、具有C1～C40的直链烷基、具有C1～C40的直链杂烷基、具有C3～C40的支链或环状的烷基、具有C3～C40的支链或环状的杂烷基、具有C2～C40的烯基或炔基、具有5～60个碳原子的芳香族环系或杂芳族环系中的一种，R1～R11中的每个基团可被一个或多个基团R取代，且其中两个或更多个相邻的取代基团可以任选地接合或稠合形成单环或多环的脂族、芳族或杂芳族环系；
Ar1、Ar2相同或者不同，选自具有C1～C40的直链烷基、具有C1～C40的直链杂烷基、具有C3～C40的支链或环状的烷基、具有C3～C40的支链或环状的杂烷基、具有C2～C40的烯基或炔基、具有5～60个碳原子的芳香族环系或杂芳族环系，所述环系可被一个或多个基团R取代；
所述R每次出现时相同或不同，选自氢原子、氘原子、卤素原子、腈基、硝基、N(Ar3)2、N(R12)2、C(＝O)Ar3、C(＝O)R12、P(＝O)(Ar3)2、具有C1～C40的直链烷基、具有C1～C40的直链杂烷基、具有C3～C40的支链或环状的烷基、具有C3～C40的支链或环状的杂烷基、具有C2～C40的烯基或炔基、具有5～80个碳原子的芳族环或杂芳族环系、具有5～60个碳原子的芳氧基或杂芳氧基中的一种，R基团中的每个基团可被一个或多个基团R12取代，或这些体系的组合，其中一个或多个非相邻的-CH2-基团可被R12C＝CR12、C≡C、Si(R12)2、Ge(R12)2、Sn(R12)2、C＝O、C＝S、C＝Se、C＝NR12、P(＝O)(R12)、SO、SO2、NR12、O、S或CONR12代替，并且其中一个或多个氢原子或被氘原子、卤素原子、腈基或硝基代替，其中两个或更多个相邻的取代基R可以任选地接合或稠合形成单环或多环的脂族、芳族或杂芳族环系，所述环系可被一个或多个基团R12取代；
R12每次出现时相同或不同，选自氢原子、氘原子、卤素原子、腈基、硝基、N(Ar3)2、N(R13)2、C(＝O)Ar3、C(＝O)R13、P(＝O)(Ar3)2、具有C1～C40的直链烷基、具有C1～C40的直链杂烷基、具有C3～C40的支链或环状的烷基、具有C3～C40的支链或环状的杂烷基、具有C2～C40的烯基或炔基、具有5～60个碳原子的芳族环或杂芳族环系、具有5～60个碳原子的芳氧基或杂芳氧基中的一种，R12中的每个基团可被一个或多个基团R13取代，或这些体系的组合，其中一个或多个非相邻的-CH2-基团可被R13C＝CR13、C≡C、Si(R13)2、Ge(R13)2、Sn(R13)2、C＝O、C＝S、C＝Se、C＝NR13、P(＝O)(R13)、SO、SO2、NR13、O、S或CONR13代替，并且其中一个或多个氢原子可被氘原子、卤素原子、腈基或硝基代替，其中两个或更多个相邻的取代基R12可以任选地接合或稠合形成单环或多环的脂族、芳族或杂芳族环系，所述环系可被一个或多个基团R13取代；
Ar3在每次出现时相同或不同，选自具有5～30个碳原子的芳族或杂芳族环系，所述环系可被一个或多个非芳族基团R13取代；此处键合至同一氮原子或磷原子的两个基团Ar3也可通过单键或选自N(R13)、C(R13)2、氧或硫的桥连基彼此桥连；
R13选自氢原子、氘原子、氟原子、腈基、具有C1～C20的脂族烃基、具有5～30个碳原子的芳族环或杂芳族环系，其中R13中一个或多个氢原子可被氘原子、卤素原子或腈基代替，其中两个或更多个相邻的取代基R13可彼此形成单环或多环的脂族、芳族或杂芳族环系。
在本发明意义上的芳族或杂芳族环系旨在被认为是指不必仅含有芳基或杂芳基的体系，而是其中多个芳基或杂芳基还可以由非芳族单元例如C、N、O或S原子连接。因此，例如，和其中两个或更多个芳基被例如短的烷基连接的体系一样，诸如芴、9,9’-螺二芴、9,9-二芳基芴、三芳基胺、二芳基醚等的体系也被认为是指在本发明意义上的芳族环系。
本发明意义上的芳基含有5～60个碳原子，在本发明意义上的杂芳基含有5～60个碳原子和至少一个杂原子，其条件是碳原子和杂原子的总和至少是5；所述杂原子优选选自N、O或S。此处的芳基或杂芳基被认为是指简单的芳族环，即苯、萘等，或简单的杂芳族环，如吡啶、嘧啶、噻吩等，或稠合的芳基或杂芳基，如蒽、菲、喹啉、异喹啉等。通过单键彼此连接的芳族环，例如联苯，相反地不被称为芳基或杂芳基，而是称为芳族环系。
对于本发明意义上的含有1～40个碳原子并且其中单独的氢原子或-CH2-基团还可被上述基团取代的脂族烃基或者烷基或者烯基或炔基优选被认为是指如下基团：甲基、乙基、正丙基、异丙基、正丁基、异丁基、仲丁基、叔丁基、2-甲基丁基、正戊基、仲戊基、新戊基、环戊基、正己基、新己基、环己基、正庚基、环庚基、正辛基、环辛基、2-乙基己基、环己烯基、庚烯基、环庚烯基、辛烯基、环辛烯基、乙炔基、丙炔基、丁炔基、戊炔基、己炔基、庚炔基或辛炔基。烷氧基优选具有1～40个碳原子的烷氧基被认为是指甲氧基、三氟甲氧基、乙氧基、正丙氧基、异丙氧基、正丁氧基、异丁氧基、仲丁氧基、叔丁氧基、正戊氧基、仲戊氧基、2-甲基丁氧基、正己氧基、环己氧基、正庚氧基、环庚氧基、正辛氧基、环辛氧基、2-乙基己氧基、五氟乙氧基和2,2,2-三氟乙氧基。杂烷基优选具有1～40个碳原子的烷基，是指其中单独的氢原子或-CH2-基团可被氧、硫、卤素原子取代的基团，被认为是指烷氧基、烷硫基、氟代的烷氧基、氟代的烷硫基，特别是指甲氧基、乙氧基、正丙氧基、异丙氧基、正丁氧基、异丁氧基、仲丁氧基、叔丁氧基、甲硫基、乙硫基、正丙硫基、异丙硫基、正丁硫基、异丁硫基、仲丁硫基、叔丁硫基、三氟甲硫基、三氟甲氧基、五氟乙氧基、五氟乙硫基、2,2,2-三氟乙氧基、2,2,2-三氟乙硫基、乙烯氧基、乙烯硫基、丙烯氧基、丙烯硫基、丁烯硫基、丁烯氧基、戊烯氧基、戊烯硫基、环戊烯氧基、环戊烯硫基、己烯氧基、己烯硫基、环己烯氧基、环己烯硫基、乙炔氧基、乙炔硫基、丙炔氧基、丙炔硫基、丁炔氧基、丁炔硫基、戊炔氧基、戊炔硫基、己炔氧基、己炔硫基。
一般来说，根据本发明的环烷基、环烯基可为环丙基、环丁基、环戊基、环己基、环丁烯基、环戊烯基、环己烯基、环庚基、环庚烯基，其中一个或多个-CH2-基团可被上述基团代替；此外，一个或多个氢原子还可被氘原子、卤素原子或腈基代替。
根据本发明的芳族或杂芳族环原子，在每种情况下还可被上述基团R13取代的芳族或杂芳族环系，特别是指衍生自如下物质的基团：苯、萘、蒽、苯并蒽、菲、芘、苝、荧蒽、并四苯、并五苯、苯并芘、联苯、偶苯、三联苯、三聚苯、芴、螺二芴、二氢菲、二氢芘、四氢芘、顺式或反式茚并芴、顺式或反式茚并咔唑、顺式或反式吲哚并咔唑、三聚茚、异三聚茚、螺三聚茚、螺异三聚茚、呋喃、苯并呋喃、异苯并呋喃、二苯并呋喃、噻吩、苯并噻吩、异苯并噻吩、二苯并噻吩、吡咯、吲哚、异吲哚、咔唑、吡啶、喹啉、异喹啉、吖啶、菲啶、苯并[5,6]喹啉、苯并[6,7]喹啉、苯并[7,8]喹啉、吩噻嗪、吩噁嗪、吡唑、吲唑、咪唑、苯并咪唑、萘并咪唑、菲并咪唑、吡啶并咪唑、吡嗪并咪唑、喹喔啉并咪唑、噁唑、苯并噁唑、萘并噁唑、蒽并噁唑、菲并噁唑、异噁唑、1,2-噻唑、1,3-噻唑、苯并噻唑、哒嗪、六氮杂苯并菲、苯并哒嗪、嘧啶、苯并嘧啶、喹喔啉、1,5-二氮杂蒽、2,7-二氮杂芘、2,3-二氮杂芘、1,6-二氮杂芘、1,8-二氮杂芘、4,5-二氮杂芘，4,5,9,10-四氮杂苝、吡嗪、吩嗪、吩噁嗪、吩噻嗪、荧红环、萘啶、氮杂咔唑、苯并咔啉、咔啉、菲咯啉、1,2,3-三唑、1,2,4-三唑、苯并三唑、1,2,3-噁二唑、1,2,4-噁二唑、1,2,5-噁二唑、1,3,4-噁二唑、1,2,3-噻二唑、1,2,4-噻二唑、1,2,5-噻二唑、1,3,4-噻二唑、1,3,5-三嗪、1,2,4-三嗪、1,2,3-三嗪、四唑、1,2,4,5-四嗪、1,2,3,4-四嗪、1,2,3,5-四嗪、嘌呤、蝶啶、吲嗪和苯并噻二唑或者衍生自这些体系的组合的基团。
进一步地，所述式(I)主要包括以下式(I)-A～式(I)-F所示的结构：
其中R1～R8、T1、T2、Ar1和R的定义与上述的定义相同。
进一步的，所述R1～R8相同或者不同，选自氢、氘、具有5～60个碳原子的芳香族环系或杂芳族环系，其中每个基团可被一个或多个基团R取代，其中两个或更多个相邻的取代基团可以任选地接合或稠合形成单环或多环的脂族、芳族或杂芳族环系；
进一步的，所述T1、T2表示O或S；
进一步的，所述Ar1选自具有5～60个碳原子的芳香族环系或杂芳族环系，所述环系可被一个或多个基团R取代。
进一步的，所述咔唑衍生物主要包括如下CJHL239～CJHL460所示：
一种所述的咔唑衍生物在有机元件用材料中的应用。
进一步的，所述咔唑衍生物为有机电致发光元件用材料、有机场效应晶体管用材料或有机薄膜太阳能电池用材料。
进一步的，所述咔唑衍生物在发光层材料、空穴输送/空穴阻挡层材料或封装层材料中的应用。
一种有机电致发光元件，包括第一电极、第二电极和位于第一电极和第二电极之间的多层有机层，所述有机层中的至少一层包含所述的咔唑衍生物。
所述有机电致发光元件包含阴极、阳极和至少一个发光层。除了这些层之外，它还可以包含其它的层，例如在每种情况下，包含一个或多个空穴注入层、空穴传输层、空穴阻挡层、电子传输层、电子注入层、激子阻挡层、电子阻挡层和/或电荷产生层。具有例如激子阻挡功能的中间层同样可引入两个发光层之间。然而，应当指出，这些层中的每个并非必须都存在。此处所述有机电致发光装置可包含一个发光层，或者它可包含多个发光层。即，将能够发光的多种发光化合物用于所述发光层中。特别优选具有三个发光层的体系，其中所述三个层可显示蓝色、绿色和红色发光。如果存在多于一个的发光层，则根据本发明，这些层中的至少一个层包含本发明的咔唑衍生物。
在根据本发明的有机电致发光元件的其它层中，特别是在空穴传输层中以及在空穴阻挡层和薄膜封装层中，所有材料可以按照根据现有技术通常所使用的方式来使用。本领域普通技术人员因此将能够在不付出创造性劳动的情况下与根据本发明的发光层组合使用关于有机电致发光元件所知的所有材料。
此外优选如下的有机电致发光元件，借助于升华方法施加一个或多个层，其中在真空升华装置中在低于10-5Pa、优选低于10-6Pa的初压下通过气相沉积来施加所述材料。然而，所述初压还可能甚至更低，例如低于10-7Pa。
同样优选如下的有机电致发光元件，借助于有机气相沉积方法或借助于载气升华来施加一个或多个层，其中，在10-5Pa至1Pa之间的压力下施加所述材料。该方法的特别的例子是有机蒸气喷印方法，其中所述材料通过喷嘴直接施加，并且因此是结构化的。
此外优选如下的有机电致发光元件，从溶液中，例如通过旋涂，或借助于任何所希望的印刷方法例如丝网印刷、柔性版印刷、平版印刷、光引发热成像、热转印、喷墨印刷或喷嘴印刷，来产生一个或多个层。可溶性化合物，例如通过适当的取代式(I)所示的化合物获得可溶性化合物。这些方法也特别适于低聚物、树枝状大分子和聚合物。此外可行的是混合方法，其中例如从溶液中施加一个或多个层并且通过气相沉积施加一个或多个另外的层。
进一步地，所述有机层还包括选自电子注入层、电子输送层、空穴阻挡层、电子阻挡层、空穴输送层、空穴注入层、发光层、光折射层的一种以上。
本发明的有机电致发光元件既可以是顶发射光元件，又可以是底发射光元件。本发明的有机电致发光元件的结构和制备方法没有限定。采用本发明的化合物制得的有机电致发光元件可降低启动电压、提高发光效率和亮度。
一种显示装置，包括所述的有机电致发光元件。
一种照明装置，包括所述的有机电致发光元件。
本发明的有机元件用材料含有本发明的咔唑衍生物。有机元件用材料可以单独使用本发明的化合物构成，也可以同时含有其他化合物。
本发明的有机电致发光元件用材料中所含有的本发明的咔唑衍生物可以用作主体材料。此时，本发明的有机电致发光元件用材料中可以含有作为掺杂材料的其他化合物。
本发明的有机电致发光元件用材料还可以作为空穴传输层、增强层、发光层、电子传输层、电荷产生层、电子阻挡层、封装层或光折射层用材料。
与现有技术相比，本发明的有益效果为：本发明所述的咔唑衍生物具有较高的三重态能级、高的玻璃化温度，适宜作为有机电致发光元件用材料使用，含有所述的咔唑衍生物的有机电致发光元件用材料，具有启动电压低，发光效率和亮度高的特点。另外，本发明的咔唑衍生物具有良好的热稳定性和成膜性能，应用在有机电致发光元件用材料、有机电致发光元件、显示装置、照明装置中，能够延长使用寿命，从而能够降低有机电致发光元件用材料、有机电致发光元件、显示装置、照明装置的制造成本。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明的有机电致发光装置的一个底部发光例子的示意图；
图2是本发明的有机电致发光装置的一个顶部发光例子的示意图。
附图标记
1-基板、2-阳极、3-空穴注入层、4-空穴传输/电子阻挡层、5-发光层、6-空穴阻挡/电子传输层、7-电子注入层、8-阴极。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将对本发明的技术方案进行详细的描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所得到的所有其它实施方式，都属于本发明所保护的范围。
以下实施例中OLED材料及元件进行性能测试的测试仪器及方法如下：
OLED元件性能检测条件：
亮度和色度坐标：使用光谱扫描仪PhotoResearch PR-715测试；
电流密度和起亮电压：使用数字源表Keithley 2420测试；
功率效率：使用NEWPORT 1931-C测试；
寿命测试：使用LTS-1004AC寿命测试装置。
实施例1
中间体A1的制备方法，包括如下步骤：
第一步：化合物Int.-1的制备
在氮气保护下，5.0g(37.8mmol)的2-甲氧基苯乙炔溶于50mL的三乙胺中，加入11.2g(45.5mmol)的1-溴二苯并呋喃、760.0mg(4.0mmol)的碘化亚铜、0.9g(4.0mmol)的醋酸钯和2.1g(8.0mmol)的三苯基磷，升温回流搅拌反应6小时，减压浓缩干，用硅胶柱分离纯化，得到中间体Int.-1，收率92％。
第二步：化合物Int.-2的制备
在氮气保护下，10.0g(33.5mmol)的中间体Int.-1溶于60mL的二氯甲烷中，加入8.5g(33.5mmol)的碘，于室温搅拌反应20小时，加入20mL的饱和硫代硫酸钠水溶液，分出有机相用1N稀盐酸水洗，水洗，干燥，过滤，滤液减压浓缩干，用硅胶柱分离纯化，得到中间体Int.-2，收率89％。
第三步：化合物Int.-3的制备
参照第一步的制备方法，仅将第一步中的2-甲氧基苯乙炔替换为邻硝基苯基乙炔，将1-溴二苯并呋喃替换为中间体Int.-2，制备中间体Int.-3，收率95％。
第四步：中间体Int.-4的制备
在氮气保护下，8.6g(20.0mmol)的中间体Int.-3溶于120mL干燥的甲苯中，加入530.0mg(2.0mmol)的氯化铂，升温回流搅拌反应12小时，减压浓缩干，用硅胶柱分离纯化，得到中间体Int.-4，收率72％。
第五步：中间体A1的制备
105.0g(0.4mol)的三苯基磷和43.0g(0.1mol)的中间体Int.-4混合，升温至150℃搅拌反应4小时，冷却到室温，加入200mL的甲苯加热溶解，用硅胶柱分离纯化，得到中间体A1，收率76％。
参照上述的合成方法，制备以下化合物：
实施例2
化合物CJHL241的制备：
10.0mmol中间体A5溶解于80mL干燥的THF中，在氮气保护下，用冰水浴降温至0℃，加入11.0mmol的65％氢化钠固体，搅拌反应1小时，加入11.0mmol的2-氯-4,6-二苯基-1,3,5-三嗪(CAS:3842-55-5)，搅拌反应24小时，加入50mL水稀释，用乙酸乙酯萃取，收集有机相，干燥，过滤，滤液减压浓缩干，用硅胶柱分离纯化，得到化合物CJHL241，白色固体，收率78％，MS(MALDI-TOF)：m/z 629.1991[M+H]+。
以上述类似的合成方法，制备以下化合物：
实施例3
化合物CJHL336的制备：
15.0mmol中间体A1溶解于80mL干燥的甲苯中，在氮气保护下，加入16.5mmol的2-(3-溴苯基)-4,6-二苯基-1,3,5-三嗪(CAS:864377-31-1)和22.5mmol的叔丁醇钠，再加入0.1mmol的Pd2(dba)3CHCl3和0.02mL的10％三叔丁磷甲苯溶液，升温至100℃，搅拌反应15小时，冷却到室温，加入50mL水稀释，用乙酸乙酯萃取，收集有机相，干燥，过滤，滤液减压浓缩干，用硅胶柱分离纯化，得到化合物CJHL336，黄色固体，收率82％，MS(MALDI-TOF)：m/z705.2308[M+H]+。
以上述类似的合成方法，制备以下化合物：
有机电致发光元件的制备
对比例1
将下述的化合物A1和A2的混合物作为绿光主体材料，其中A1和A2的质量比为11:9，使用下述的化合物B作为绿光掺杂材料，化合物C作为孔穴注入材料，化合物D作为空穴传输材料、化合物E作为红光材料，化合物F作为红光掺杂材料，化合物G作为电子传输掺杂材料，LiQ作为电子传输主体材料。
将化合物C/D/A1+A2+B(5％)/LiQ+G(50％)/LiF/Al(2nm)依次采用DOV公司制造的EL蒸镀机蒸镀到ITO玻璃上制作绿光元件，制得作为绿光的有机电致发光元件。
将化学式C/D/E+F(3％)/LiQ+G(50％)/LiF/Al(2nm)依次采用DOV公司制造的EL蒸镀机蒸镀到ITO玻璃上制作红光元件，制得作为红光的有机电致发光元件。
试验例1
将化合物A替换为本发明的化合物CJHL239～CJHL460，按照对比例1的方法制备绿光有机电致发光元件。
所得绿光有机电致发光元件的性能检测结果列于表1中，其中驱动电压(V)、电流效率(LE)、色坐标(CIE)、半峰宽(FWHM)是在元件的电流密度为10mA/cm2条件下得出，且电压、LE、FWHM和LT90％相较参比元件进行了数据归一化处理。
表1绿光元件性能检测结果
由表1可知，本发明的有机材料制备成的绿光元件相较于对比例1制备的元件，驱动电压低，电流效率较高，色纯度好，而且在元件发光亮度初始为2000cd/cm2为初始的条件下，使用本发明的化合物作为绿光主体材料的元件寿命有很大提高。
表1中仅列举了部分的CJHL239～CJHL460中部分化合物的性能，其他化合物性能与表中列举的化合物的结构基本一致，由于篇幅有限，不再一一列举。
按照对比例1的方法制备红光元件，其中，将前述的化合物E替换为本发明的化合物CJHL239～CJHL460，除此之外，ITO/C/D/[本发明的化合物CJHL239～CJHL460]+F(3％)/LiQ+G(50％)/LiF/Al(2nm)。
所得元件的性能检测结果列于表2中，其中驱动电压(V)、电流效率(LE)、色坐标(CIE)、半峰宽(FWHM)是在元件的电流密度为10mA/cm2条件下得出，且电压、LE、FWHM和LT90％相较参比元件进行了数据归一化处理。
表2红光元件性能检测结果
由表2的红光元件性能测试结果可知，本发明的有机材料制备成的元件相较于对比例1制备的红光元件驱动电压明显降低，电流效率高，发光色纯度好。在元件初始亮度为2000cd/cm2为初始的条件下，使用本发明的化合物作为红光主体材料的元件LT90％寿命是对比元件1.1倍至2.7倍。
表2中仅列举了部分的CJHL239～CJHL460中部分化合物的性能，其他化合物性能与表中列举的化合物的结构基本一致，由于篇幅有限，不再一一列举。
如图1和2所示，分别为本发明的有机电致发光装置的一个底部发光例子的示意图和有机电致发光装置的一个顶部发光例子的示意图，本发明制备的咔唑衍生物包含在发光层5中。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。
Claims (7)
1.一种咔唑衍生物，其特征在于，所述咔唑衍生物为以下式(I)-A～式(I)-D所示的结构：
T1、T2表示O或S，
所述R1～R8选自氢、氘；
Ar1为具有5～60个碳原子的芳香族环系或杂芳族环系；
R为氢。
2.一种咔唑衍生物，其特征在于，所述咔唑衍生物为以下CJHL239～CJHL460所示的结构：
3.一种权利要求1～2任意一项所述的咔唑衍生物在有机电致发光元件用材料、有机场效应晶体管用材料或有机薄膜太阳能电池用材料中的应用。
4.根据权利要求3所述的应用，其特征在于，所述咔唑衍生物用于发光层材料、空穴输送/空穴阻挡层材料或封装层材料。
5.一种有机电致发光元件，其特征在于，包括第一电极、第二电极和位于第一电极和第二电极之间的多层有机层，所述有机层中的至少一层包含权利要求1～2任意一项所述的咔唑衍生物。
6.一种显示装置，其特征在于，包括权利要求5所述的有机电致发光元件。
7.一种照明装置，其特征在于，包括权利要求5所述的有机电致发光元件。
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