JP2005129310A - 有機電界発光素子 - Google Patents
有機電界発光素子 Download PDFInfo
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- JP2005129310A JP2005129310A JP2003362425A JP2003362425A JP2005129310A JP 2005129310 A JP2005129310 A JP 2005129310A JP 2003362425 A JP2003362425 A JP 2003362425A JP 2003362425 A JP2003362425 A JP 2003362425A JP 2005129310 A JP2005129310 A JP 2005129310A
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- -1 oxygen anion Chemical class 0.000 claims abstract description 172
- 150000001875 compounds Chemical class 0.000 claims abstract description 78
- 239000010410 layer Substances 0.000 claims abstract description 72
- 239000000463 material Substances 0.000 claims abstract description 59
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 56
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims abstract description 44
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 33
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 21
- 150000004696 coordination complex Chemical class 0.000 claims abstract description 20
- 239000003446 ligand Substances 0.000 claims abstract description 19
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 16
- 125000005842 heteroatom Chemical group 0.000 claims abstract description 15
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical group C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 125000002950 monocyclic group Chemical group 0.000 claims abstract description 7
- 239000011593 sulfur Substances 0.000 claims abstract description 7
- 239000012044 organic layer Substances 0.000 claims abstract description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 173
- 125000000623 heterocyclic group Chemical group 0.000 claims description 70
- 125000003118 aryl group Chemical group 0.000 claims description 64
- 125000001424 substituent group Chemical group 0.000 claims description 52
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 37
- 229910052751 metal Inorganic materials 0.000 claims description 34
- 239000002184 metal Substances 0.000 claims description 34
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 28
- 125000001931 aliphatic group Chemical group 0.000 claims description 26
- 229910052799 carbon Inorganic materials 0.000 claims description 19
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 claims description 18
- 125000006615 aromatic heterocyclic group Chemical group 0.000 claims description 18
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 claims description 15
- 125000005647 linker group Chemical group 0.000 claims description 14
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical group C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims description 12
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 claims description 12
- 125000004429 atom Chemical group 0.000 claims description 12
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 10
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 claims description 9
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 7
- 125000002837 carbocyclic group Chemical group 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 11
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 47
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 20
- 238000002347 injection Methods 0.000 description 18
- 239000007924 injection Substances 0.000 description 18
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 16
- KLSJWNVTNUYHDU-UHFFFAOYSA-N Amitrole Chemical group NC1=NC=NN1 KLSJWNVTNUYHDU-UHFFFAOYSA-N 0.000 description 15
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 15
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 15
- 125000000217 alkyl group Chemical group 0.000 description 15
- 238000005401 electroluminescence Methods 0.000 description 15
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 15
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 14
- 150000003852 triazoles Chemical class 0.000 description 14
- 125000002883 imidazolyl group Chemical group 0.000 description 13
- 125000004430 oxygen atom Chemical group O* 0.000 description 13
- 125000004434 sulfur atom Chemical group 0.000 description 13
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 12
- 125000003373 pyrazinyl group Chemical group 0.000 description 12
- 125000000714 pyrimidinyl group Chemical group 0.000 description 12
- KDCGOANMDULRCW-UHFFFAOYSA-N 7H-purine Chemical compound N1=CNC2=NC=NC2=C1 KDCGOANMDULRCW-UHFFFAOYSA-N 0.000 description 10
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 10
- 125000003545 alkoxy group Chemical group 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 150000002739 metals Chemical class 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 125000002971 oxazolyl group Chemical group 0.000 description 10
- XSCHRSMBECNVNS-UHFFFAOYSA-N quinoxaline Chemical compound N1=CC=NC2=CC=CC=C21 XSCHRSMBECNVNS-UHFFFAOYSA-N 0.000 description 10
- 239000010408 film Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 9
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical compound C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 9
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 9
- LFSXCDWNBUNEEM-UHFFFAOYSA-N phthalazine Chemical compound C1=NN=CC2=CC=CC=C21 LFSXCDWNBUNEEM-UHFFFAOYSA-N 0.000 description 9
- 150000003536 tetrazoles Chemical class 0.000 description 9
- 238000007740 vapor deposition Methods 0.000 description 9
- 0 CC1=C(CC*)*C(*)=N1 Chemical compound CC1=C(CC*)*C(*)=N1 0.000 description 8
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 8
- 150000001721 carbon Chemical group 0.000 description 8
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 8
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 8
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 8
- 125000000168 pyrrolyl group Chemical group 0.000 description 8
- 229930192474 thiophene Natural products 0.000 description 8
- BCMCBBGGLRIHSE-UHFFFAOYSA-N 1,3-benzoxazole Chemical compound C1=CC=C2OC=NC2=C1 BCMCBBGGLRIHSE-UHFFFAOYSA-N 0.000 description 7
- ODIRBFFBCSTPTO-UHFFFAOYSA-N 1,3-selenazole Chemical group C1=C[se]C=N1 ODIRBFFBCSTPTO-UHFFFAOYSA-N 0.000 description 7
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 7
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 7
- 125000003342 alkenyl group Chemical group 0.000 description 7
- 125000003277 amino group Chemical group 0.000 description 7
- 125000004104 aryloxy group Chemical group 0.000 description 7
- 125000004093 cyano group Chemical group *C#N 0.000 description 7
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 7
- 125000005843 halogen group Chemical group 0.000 description 7
- 230000005525 hole transport Effects 0.000 description 7
- UGUHFDPGDQDVGX-UHFFFAOYSA-N 1,2,3-thiadiazole Chemical group C1=CSN=N1 UGUHFDPGDQDVGX-UHFFFAOYSA-N 0.000 description 6
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 6
- 125000000304 alkynyl group Chemical group 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 description 6
- WDECIBYCCFPHNR-UHFFFAOYSA-N chrysene Chemical compound C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 description 6
- 125000001624 naphthyl group Chemical group 0.000 description 6
- 125000003226 pyrazolyl group Chemical group 0.000 description 6
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 6
- YGNGABUJMXJPIJ-UHFFFAOYSA-N thiatriazole Chemical group C1=NN=NS1 YGNGABUJMXJPIJ-UHFFFAOYSA-N 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 125000000355 1,3-benzoxazolyl group Chemical group O1C(=NC2=C1C=CC=C2)* 0.000 description 5
- FLBAYUMRQUHISI-UHFFFAOYSA-N 1,8-naphthyridine Chemical compound N1=CC=CC2=CC=CN=C21 FLBAYUMRQUHISI-UHFFFAOYSA-N 0.000 description 5
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 5
- ZCQWOFVYLHDMMC-UHFFFAOYSA-N Oxazole Chemical compound C1=COC=N1 ZCQWOFVYLHDMMC-UHFFFAOYSA-N 0.000 description 5
- 125000004442 acylamino group Chemical group 0.000 description 5
- 125000004397 aminosulfonyl group Chemical group NS(=O)(=O)* 0.000 description 5
- 150000001601 aromatic carbocyclic compounds Chemical class 0.000 description 5
- 125000003785 benzimidazolyl group Chemical group N1=C(NC2=C1C=CC=C2)* 0.000 description 5
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 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 5
- 238000000151 deposition Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 125000004857 imidazopyridinyl group Chemical group N1C(=NC2=C1C=CC=N2)* 0.000 description 5
- 125000001041 indolyl group Chemical group 0.000 description 5
- 125000002183 isoquinolinyl group Chemical group C1(=NC=CC2=CC=CC=C12)* 0.000 description 5
- 229910044991 metal oxide Inorganic materials 0.000 description 5
- 150000004706 metal oxides Chemical class 0.000 description 5
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 5
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- 125000006296 sulfonyl amino group Chemical group [H]N(*)S(*)(=O)=O 0.000 description 5
- AIGNCQCMONAWOL-UHFFFAOYSA-N 1,3-benzoselenazole Chemical group C1=CC=C2[se]C=NC2=C1 AIGNCQCMONAWOL-UHFFFAOYSA-N 0.000 description 4
- 125000004974 2-butenyl group Chemical group C(C=CC)* 0.000 description 4
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 4
- 125000001494 2-propynyl group Chemical group [H]C#CC([H])([H])* 0.000 description 4
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 4
- 125000004414 alkyl thio group Chemical group 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 125000005110 aryl thio group Chemical group 0.000 description 4
- VPUGDVKSAQVFFS-UHFFFAOYSA-N coronene Chemical compound C1=C(C2=C34)C=CC3=CC=C(C=C3)C4=C4C3=CC=C(C=C3)C4=C2C3=C1 VPUGDVKSAQVFFS-UHFFFAOYSA-N 0.000 description 4
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 4
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 description 4
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 4
- 125000004437 phosphorous atom Chemical group 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 229920000412 polyarylene Polymers 0.000 description 4
- JWVCLYRUEFBMGU-UHFFFAOYSA-N quinazoline Chemical compound N1=CN=CC2=CC=CC=C21 JWVCLYRUEFBMGU-UHFFFAOYSA-N 0.000 description 4
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- PYWQACMPJZLKOQ-UHFFFAOYSA-N 1,3-tellurazole Chemical group [Te]1C=CN=C1 PYWQACMPJZLKOQ-UHFFFAOYSA-N 0.000 description 3
- BAXOFTOLAUCFNW-UHFFFAOYSA-N 1H-indazole Chemical compound C1=CC=C2C=NNC2=C1 BAXOFTOLAUCFNW-UHFFFAOYSA-N 0.000 description 3
- 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 3
- CBHTTYDJRXOHHL-UHFFFAOYSA-N 2h-triazolo[4,5-c]pyridazine Chemical compound N1=NC=CC2=C1N=NN2 CBHTTYDJRXOHHL-UHFFFAOYSA-N 0.000 description 3
- 125000000590 4-methylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 3
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 3
- 125000000641 acridinyl group Chemical group C1(=CC=CC2=NC3=CC=CC=C3C=C12)* 0.000 description 3
- 125000002252 acyl group Chemical group 0.000 description 3
- 125000004423 acyloxy group Chemical group 0.000 description 3
- 125000004453 alkoxycarbonyl group Chemical group 0.000 description 3
- 125000005161 aryl oxy carbonyl group Chemical group 0.000 description 3
- 125000005334 azaindolyl group Chemical group N1N=C(C2=CC=CC=C12)* 0.000 description 3
- 125000002785 azepinyl group Chemical group 0.000 description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 3
- 239000012964 benzotriazole Substances 0.000 description 3
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- WCZVZNOTHYJIEI-UHFFFAOYSA-N cinnoline Chemical compound N1=NC=CC2=CC=CC=C21 WCZVZNOTHYJIEI-UHFFFAOYSA-N 0.000 description 3
- 125000000259 cinnolinyl group Chemical group N1=NC(=CC2=CC=CC=C12)* 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000003618 dip coating Methods 0.000 description 3
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 3
- 125000002541 furyl group Chemical group 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 125000003453 indazolyl group Chemical group N1N=C(C2=C1C=CC=C2)* 0.000 description 3
- ZLTPDFXIESTBQG-UHFFFAOYSA-N isothiazole Chemical group C=1C=NSC=1 ZLTPDFXIESTBQG-UHFFFAOYSA-N 0.000 description 3
- 125000000842 isoxazolyl group Chemical group 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 125000001160 methoxycarbonyl group Chemical group [H]C([H])([H])OC(*)=O 0.000 description 3
- 125000004170 methylsulfonyl group Chemical group [H]C([H])([H])S(*)(=O)=O 0.000 description 3
- CQDAMYNQINDRQC-UHFFFAOYSA-N oxatriazole Chemical group C1=NN=NO1 CQDAMYNQINDRQC-UHFFFAOYSA-N 0.000 description 3
- RDOWQLZANAYVLL-UHFFFAOYSA-N phenanthridine Chemical group C1=CC=C2C3=CC=CC=C3C=NC2=C1 RDOWQLZANAYVLL-UHFFFAOYSA-N 0.000 description 3
- 125000001791 phenazinyl group Chemical group C1(=CC=CC2=NC3=CC=CC=C3N=C12)* 0.000 description 3
- 125000005936 piperidyl group Chemical group 0.000 description 3
- 229920000123 polythiophene Polymers 0.000 description 3
- CPNGPNLZQNNVQM-UHFFFAOYSA-N pteridine Chemical compound N1=CN=CC2=NC=CN=C21 CPNGPNLZQNNVQM-UHFFFAOYSA-N 0.000 description 3
- 125000004076 pyridyl group Chemical group 0.000 description 3
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000004528 spin coating Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- QKTRRACPJVYJNU-UHFFFAOYSA-N thiadiazolo[5,4-b]pyridine Chemical compound C1=CN=C2SN=NC2=C1 QKTRRACPJVYJNU-UHFFFAOYSA-N 0.000 description 3
- 125000002088 tosyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C([H])([H])[H])S(*)(=O)=O 0.000 description 3
- 125000005259 triarylamine group Chemical group 0.000 description 3
- YWBFPKPWMSWWEA-UHFFFAOYSA-O triazolopyrimidine Chemical compound BrC1=CC=CC(C=2N=C3N=CN[N+]3=C(NCC=3C=CN=CC=3)C=2)=C1 YWBFPKPWMSWWEA-UHFFFAOYSA-O 0.000 description 3
- 238000001771 vacuum deposition Methods 0.000 description 3
- UWRZIZXBOLBCON-VOTSOKGWSA-N (e)-2-phenylethenamine Chemical class N\C=C\C1=CC=CC=C1 UWRZIZXBOLBCON-VOTSOKGWSA-N 0.000 description 2
- DXBHBZVCASKNBY-UHFFFAOYSA-N 1,2-Benz(a)anthracene Chemical compound C1=CC=C2C3=CC4=CC=CC=C4C=C3C=CC2=C1 DXBHBZVCASKNBY-UHFFFAOYSA-N 0.000 description 2
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Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
【解決手段】一対の電極間に、発光層を含む有機層を有する有機電界発光素子であり、発光層に2種以上のホスト材料と、蛍光発光材料とを含有し、該ホスト材料の少なくとも1種が、単環アジン環骨格を有する化合物、ヘテロ環が縮合したアゾール環骨格を有する化合物、ヘテロ環が縮合したアジン環骨格を有する化合物、金属イオンに窒素で配位する含窒素ヘテロ環と、金属イオンに酸素アニオン、硫黄アニオンないし窒素アニオンで配位する炭素環ないしヘテロ環とが単結合ないし連結基で連結した配位子を有する金属錯体、の群から選ばれた化合物である有機電界発光素子。
【選択図】 なし
Description
1.一対の電極間に、発光層を含む少なくとも一層の有機層を有する有機電界発光素子であって、発光層に少なくとも2種のホスト材料と、少なくとも1種の蛍光発光材料とを含有し、ホスト材料の少なくとも一種が、単環アジン環骨格を有する化合物、ヘテロ環が縮合したアゾール環骨格を有する化合物、ヘテロ環が縮合したアジン環骨格を有する化合物、金属イオンに窒素で配位する含窒素ヘテロ環と金属イオンに酸素アニオン、硫黄アニオンないし窒素アニオンで配位する炭素環ないしヘテロ環が単結合又は連結基で連結した配位子を有する金属錯体、の群から選ばれることを特徴とする有機電界発光素子。
2.単環アジン骨格を有する化合物が、芳香族炭素環又は芳香族ヘテロ環で置換されたピリジン、ピラジン、ピリミジン、ピリダジン、トリアジンの群から選ばれる化合物であることを特徴とする1に記載の有機電界発光素子。
3.単環アジン骨格を有する化合物が式(I)で表されることを特徴とする2に記載の発光素子。
式(I)
4.ヘテロ環が縮合したアゾール骨格が下記式(II)で表されることを特徴とする1に記載の有機電界発光素子。
式(II)
5.ヘテロ環が縮合したアゾール骨格が下記式(IIA)で表されることを特徴とする4に記載の有機電界発光素子。
式(IIA)
6.ヘテロ環が縮合したアゾール骨格が下記式(IIB)で表されることを特徴とする5に記載の有機電界発光素子。
7.ヘテロ環が縮合したアゾール骨格が下記式(IIC)で表されることを特徴とする5に記載の有機電界発光素子。
式(IIC)
8.ヘテロ環が縮合したアゾール骨格が下記式(IID)で表されることを特徴とする4に記載の有機電界発光素子。
式(IID)
9.ヘテロ環が縮合したアゾール骨格が下記式(IIE)で表されることを特徴とする4に記載の有機電界発光素子。
式(IIE)
10.金属イオンに窒素で配位する含窒素ヘテロ環と金属イオンに酸素アニオンで配位する炭素環ないしヘテロ環が単結合又は連結基で連結した配位子を有する金属錯体が、下記式(III)で表される化合物からなることを特徴とする1に記載の有機電界発光素子
式(III)
11.有機電界発光素子が電子輸送層を含有し、該電子輸送層が式(E1)で表される化合物を含有することを特徴とする1〜10のいずれかに記載の有機電界発光素子。
12.該電子輸送層が式(E−II)で表される化合物を含有することを特徴とする11に記載の有機電界発光素子。
13.該電子輸送層が式(E−III)で表される化合物を含有することを特徴とする11に記載の有機電界発光素子。
14.該電子輸送層が式(E−IV)で表される化合物を含有することを特徴とする11に記載の有機電界発光素子。
式(E−IV)
式(I)
式(II)
アルキル基(好ましくは炭素数1〜30、より好ましくは炭素数1〜20、特に好ましくは炭素数1〜10であり、例えばメチル、エチル、iso−プロピル、tert−ブチル、n−オクチル、n−デシル、n−ヘキサデシル、シクロプロピル、シクロペンチル、シクロヘキシルなどが挙げられる。)、アルケニル基(好ましくは炭素数2〜30、より好ましくは炭素数2〜20、特に好ましくは炭素数2〜10であり、例えばビニル、アリル、2−ブテニル、3−ペンテニルなどが挙げられる。)、アルキニル基(好ましくは炭素数2〜30、より好ましくは炭素数2〜20、特に好ましくは炭素数2〜10であり、例えばプロパルギル、3−ペンチニルなどが挙げられる。)、アリール基(好ましくは炭素数6〜30、より好ましくは炭素数6〜20、特に好ましくは炭素数6〜12であり、例えばフェニル、p−メチルフェニル、ナフチルなどが挙げられる。)、アミノ基(好ましくは炭素数0〜30、より好ましくは炭素数0〜24、特に好ましくは炭素数0〜20であり、例えばアミノ、メチルアミノ、ジメチルアミノ、ジエチルアミノ、ジベンジルアミノ、ジフェニルアミノ、ジトリルアミノ、ジナフチルアミノなどが挙げられ、特に好ましくはジフェニルアミノ、ジトリルアミノ、ジナフチルアミノ基である。)、アルコキシ基(好ましくは炭素数1〜30、より好ましくは炭素数1〜20、特に好ましくは炭素数1〜10であり、例えばメトキシ、エトキシ、ブトキシ、2−エチルヘキシロキシなどが挙げられる。)、アリールオキシ基(好ましくは炭素数6〜30、より好ましくは炭素数6〜20、特に好ましくは炭素数6〜12であり、例えばフェノキシ、1−ナフトキシ、2−ナフトキシなどが挙げられる。)、ヘテロ環オキシ基(好ましくは炭素数2〜20、より好ましくは炭素数3〜16、特に好ましくは炭素数4〜12であり、例えばピリジノオキシ、ピリミジノオキシ、ピリダジノオキシ、ベンズイミダゾリルオキシなどが挙げられる。)、シリルオキシ基(好ましくは炭素数3〜40、より好ましくは炭素数3〜30、特に好ましくは炭素数3〜20であり、例えばトリメチルシリルオキシ、t−ブチルジメチルシリルオキシ、トリフェニルシリルオキシなどが挙げられる。)、アシル基(好ましくは炭素数1〜30、より好ましくは炭素数1〜20、特に好ましくは炭素数2〜12であり、例えばアセチル、ベンゾイル、ホルミル、ピバロイルなどが挙げられる。)、アルコキシカルボニル基(好ましくは炭素数2〜30、より好ましくは炭素数2〜20、特に好ましくは炭素数2〜12であり、例えばメトキシカルボニル、エトキシカルボニルなどが挙げられる。)、アリールオキシカルボニル基(好ましくは炭素数7〜30、より好ましくは炭素数7〜20、特に好ましくは炭素数7〜12であり、例えばフェノキシカルボニルなどが挙げられる。)、アシルオキシ基(好ましくは炭素数2〜30、より好ましくは炭素数2〜20、特に好ましくは炭素数2〜10であり、例えばアセトキシ、ベンゾイルオキシなどが挙げられる。)、アシルアミノ基(好ましくは炭素数2〜30、より好ましくは炭素数2〜20、特に好ましくは炭素数2〜10であり、例えばアセチルアミノ、ベンゾイルアミノなどが挙げられる。)、アルコキシカルボニルアミノ基(好ましくは炭素数2〜30、より好ましくは炭素数2〜20、特に好ましくは炭素数2〜12であり、例えばメトキシカルボニルアミノなどが挙げられる。)、アリールオキシカルボニルアミノ基(好ましくは炭素数7〜30、より好ましくは炭素数7〜20、特に好ましくは炭素数7〜12であり、例えばフェノキシカルボニルアミノなどが挙げられる。)、スルホニルアミノ基(好ましくは炭素数1〜30、より好ましくは炭素数1〜20、特に好ましくは炭素数1〜12であり、例えばメタンスルホニルアミノ、ベンゼンスルホニルアミノなどが挙げられる。)、スルファモイル基(好ましくは炭素数0〜30、より好ましくは炭素数0〜20、特に好ましくは炭素数0〜12であり、例えばスルファモイル、メチルスルファモイル、ジメチルスルファモイル、フェニルスルファモイルなどが挙げられる。)、カルバモイル基(好ましくは炭素数1〜30、より好ましくは炭素数1〜20、特に好ましくは炭素数1〜12であり、例えばカルバモイル、メチルカルバモイル、ジエチルカルバモイル、フェニルカルバモイルなどが挙げられる。)、アルキルチオ基(好ましくは炭素数1〜30、より好ましくは炭素数1〜20、特に好ましくは炭素数1〜12であり、例えばメチルチオ、エチルチオなどが挙げられる。)、アリールチオ基(好ましくは炭素数6〜30、より好ましくは炭素数6〜20、特に好ましくは炭素数6〜12であり、例えばフェニルチオなどが挙げられる。)、ヘテロ環チオ基(好ましくは炭素数1〜30、より好ましくは炭素数1〜20、特に好ましくは炭素数1〜12であり、例えばピリジルチオ、2−ベンズイミダゾリルチオ、2−ベンズオキサゾリルチオ、2−ベンズチアゾリルチオなどが挙げられる。)、スルホニル基(好ましくは炭素数1〜30、より好ましくは炭素数1〜20、特に好ましくは炭素数1〜12であり、例えばメシル、トシルなどが挙げられる。)、スルフィニル基(好ましくは炭素数1〜30、より好ましくは炭素数1〜20、特に好ましくは炭素数1〜12であり、例えばメタンスルフィニル、ベンゼンスルフィニルなどが挙げられる。)、ウレイド基(好ましくは炭素数1〜30、より好ましくは炭素数1〜20、特に好ましくは炭素数1〜12であり、例えばウレイド、メチルウレイド、フェニルウレイドなどが挙げられる。)、リン酸アミド基(好ましくは炭素数1〜30、より好ましくは炭素数1〜20、特に好ましくは炭素数1〜12であり、例えばジエチルリン酸アミド、フェニルリン酸アミドなどが挙げられる。)、ヒドロキシ基、メルカプト基、ハロゲン原子(例えばフッ素原子、塩素原子、臭素原子、ヨウ素原子)、シアノ基、スルホ基、カルボキシル基、ニトロ基、ヒドロキサム酸基、スルフィノ基、ヒドラジノ基、イミノ基、ヘテロ環基(好ましくは炭素数1〜30、より好ましくは炭素数1〜12であり、ヘテロ原子としては、例えば窒素原子、酸素原子、硫黄原子、具体的には例えばイミダゾリル、ピリジル、キノリル、フリル、チエニル、ピペリジル、モルホリノ、ベンゾオキサゾリル、ベンゾイミダゾリル、ベンゾチアゾリル、カルバゾリル、アゼピニルなどが挙げられる。)、シリル基(好ましくは炭素数3〜40、より好ましくは炭素数3〜30、特に好ましくは炭素数3〜24であり、例えばトリメチルシリル、トリフェニルシリルなどが挙げられる。)などが挙げられる。これらの置換基は更に置換されてもよい。また置換基が二つ以上ある場合は、同じでも異なってもよい。また、可能な場合には連結して環を形成してもよい。
式(IV)
Q21で形成される環としては、ベンゼン環、ナフタレン環、ピリジン環、ピリミジン環、ピリダジン環、ピラジン環、キノリン環、キノキサリン環、イソキノリン環、シンノリン環、フタラジン環、キナゾリン環、トリアジン環、アクリジン環、フェナジン環、フェナントロリン環、ナフチリジン環、フェナントリジン環、ピロール環、インドール環、ピラゾール環、イミダゾール環、ベンゾイミダゾール環、オキサゾール環、ベンゾオキサゾール環、チアゾール環、ベンゾチアゾール環、セレナゾール環、ベンゾセレナゾール環、インダゾール環、イソチアゾール環、イソオキサゾール環、トリアゾール環、ベンゾトリアゾール環、テトラゾール環、オキサジアゾール環、チアジアゾール環、チアトリアゾール環、アザインドール環、イミダゾピリジン環、プリン環、イミダゾリン環、アゼピン環、フラン環、ベンゾフラン環、チオフェン環、ベンゾチオフェン環や上記の芳香環類が全部または部分的に還元された環等が挙げられる。Q21で形成される環は芳香環であることが好ましく、好ましくはピリジン環、ピリミジン環、ピラジン環、キノリン環、キノキサリン環、イソキノリン環、フタラジン環、ピロール環、インドール環、イミダゾール環、ベンゾイミダゾール環、オキサゾール環、ベンゾオキサゾール環、チアゾール環、ベンゾチアゾール環、トリアゾール環、ベンゾトリアゾール環、イミダゾピリジン環であり、さらに好ましくは、イミダゾピリジン環である。
Q22で形成される環としては、ベンゼン環、ナフタレン環、ピリジン環、ピリミジン環、ピリダジン環、ピラジン環、キノリン環、キノキサリン環、イソキノリン環、シンノリン環、フタラジン環、キナゾリン環、トリアジン環、アクリジン環、フェナジン環、フェナントロリン環、ナフチリジン環、フェナントリジン環、ピロール環、インドール環、ピラゾール環、イミダゾール環、ベンゾイミダゾール環、オキサゾール環、ベンゾオキサゾール環、チアゾール環、ベンゾチアゾール環、セレナゾール環、ベンゾセレナゾール環、インダゾール環、イソチアゾール環、イソオキサゾール環、トリアゾール環、ベンゾトリアゾール環、テトラゾール環、オキサジアゾール環、チアジアゾール環、チアトリアゾール環、アザインドール環、イミダゾピリジン環、プリン環、イミダゾリン環、アゼピン環、フラン環、ベンゾフラン環、チオフェン環、ベンゾチオフェン環、シクロヘキサン環、シクロヘキセン環、ピレン環、ペリレン環等が挙げられる。Q22で形成される環は芳香環であることが好ましく、好ましくは、ベンゼン環、ナフタレン環、ピリジン環、チオフェン環、ピラジン環であり、より好ましくはベンゼン環、ピリジン環であり、さらに好ましくはベンゼン環である。Q21、Q22で形成される環は、置換基を有していてもよく、置換基としては式(I)における各原子の置換基として挙げたものが適用できる。
以下に式(IV)で表される金属錯体の具体例を列挙するが、本発明はこれらに限定されるものではない。
式(E−IV)
洗浄したITO基板を蒸着装置に入れ、銅フタロシアニンを10nm蒸着しその上にα−NPDを40nm蒸着しホール輸送層を形成した。この上に、第一ホストとしてH−2を、第二ホストとしてAlqを、発光材料としてD−1をそれぞれ0.4nm/秒、0.1nm/秒、0.01nm/秒で膜厚が50nmになるように共蒸着し発光層を形成した。その上にAlqを30nm蒸着した。有機薄膜上にパターニングしたマスク(発光面積が2mm×2mmとなるマスク)を設置し、蒸着装置内でフッ化リチウムを5nm蒸着した後、アルミニウムを500nmを蒸着し、引き続き乾燥剤を入れずに素子を封止し、EL素子を作製した(素子No―101)。上記と同様の操作で発光材料をD−2に変更し、発光材料の蒸着速度を0.02nm/秒とし、EL素子を作成した(素子No−102)。
上記と同様の操作でNPDを蒸着した後、表1記載の第一ホスト、第二ホスト及び発光材料をそれぞれ0.4nm/秒、0.1nm/秒、0.01nm/秒:D−1(又は0.02nm/秒:D−2)で膜厚が50nmになるように共蒸着し発光層を形成した。その上に表1記載の電子輸送材料を30nm蒸着後、上記と同様にフッ化リチウムを蒸着後、アルミニウムを蒸着、乾燥剤を入れずに封止し、EL素子を作成した(素子103〜106)。
有機薄膜上に東陽テクニカ製ソースメジャーユニット2400を用いて、直流定電流をEL素子に印加し、比較例及び本発明の素子を発光させ、その輝度をトプコン社の輝度計BM−8、発光波長を浜松ホトニクス社製スペクトルアナライザーPMA−11を用いて測定し発光効率を求めた。次に保存耐久性を評価した。まず、素子の発光輝度が1000cd/m2の発光時の駆動電流測定した後、素子を80℃加熱下、96時間保存した。その後、加熱前と同電流で駆動し、加熱前後の輝度の維持率を測定した。その結果を下記表1に示す。
Claims (9)
- 一対の電極間に、発光層を含む少なくとも一層の有機層を有する有機電界発光素子であって、発光層に少なくとも2種のホスト材料と、少なくとも1種の蛍光発光材料とを含有し、該ホスト材料の少なくとも一種が、単環アジン環骨格を有する化合物、ヘテロ環が縮合したアゾール環骨格を有する化合物、ヘテロ環が縮合したアジン環骨格を有する化合物、金属イオンに窒素で配位する含窒素ヘテロ環と、金属イオンに酸素アニオン、硫黄アニオンないし窒素アニオンで配位する炭素環ないしヘテロ環とが単結合ないし連結基で連結した配位子を有する金属錯体、の群から選ばれることを特徴とする有機電界発光素子。
- 単環アジン骨格を有する化合物が、芳香族炭素環又は芳香族ヘテロ環で置換された、ピリジン、ピラジン、ピリミジン、ピリダジン、トリアジンの群から選ばれる化合物であることを特徴とする請求項1記載の有機電界発光素子。
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JP2004221068A (ja) * | 2002-12-27 | 2004-08-05 | Fuji Photo Film Co Ltd | 有機電界発光素子 |
WO2009081873A1 (ja) | 2007-12-25 | 2009-07-02 | National University Corporation Nagoya University | オリゴフェニレン骨格を含む有機材料及びそれを用いた発光素子 |
WO2011049063A1 (ja) * | 2009-10-23 | 2011-04-28 | 新日鐵化学株式会社 | 有機電界発光素子 |
US9139602B2 (en) | 2012-06-27 | 2015-09-22 | Samsung Display Co., Ltd. | Fused ring compound and organic light-emitting device including the same |
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JP2004221068A (ja) * | 2002-12-27 | 2004-08-05 | Fuji Photo Film Co Ltd | 有機電界発光素子 |
WO2009081873A1 (ja) | 2007-12-25 | 2009-07-02 | National University Corporation Nagoya University | オリゴフェニレン骨格を含む有機材料及びそれを用いた発光素子 |
WO2011049063A1 (ja) * | 2009-10-23 | 2011-04-28 | 新日鐵化学株式会社 | 有機電界発光素子 |
US9290498B2 (en) | 2009-10-23 | 2016-03-22 | Nippon Steel & Sumikin Chemical Co., Ltd. | Organic electroluminescent device having an electron- and/or exciton-blocking layer comprising an indolocarbazole compound |
US9139602B2 (en) | 2012-06-27 | 2015-09-22 | Samsung Display Co., Ltd. | Fused ring compound and organic light-emitting device including the same |
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