KR101299233B1 - 유기 금속 착물 및 이를 이용한 유기 전계 발광 소자 - Google Patents
유기 금속 착물 및 이를 이용한 유기 전계 발광 소자 Download PDFInfo
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- KR101299233B1 KR101299233B1 KR1020060106725A KR20060106725A KR101299233B1 KR 101299233 B1 KR101299233 B1 KR 101299233B1 KR 1020060106725 A KR1020060106725 A KR 1020060106725A KR 20060106725 A KR20060106725 A KR 20060106725A KR 101299233 B1 KR101299233 B1 KR 101299233B1
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- 125000002524 organometallic group Chemical group 0.000 title claims abstract description 28
- 238000005401 electroluminescence Methods 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 33
- 150000004696 coordination complex Chemical class 0.000 claims abstract description 4
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- 125000004432 carbon atom Chemical group C* 0.000 claims description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 229910052799 carbon Inorganic materials 0.000 claims description 20
- 125000001072 heteroaryl group Chemical group 0.000 claims description 20
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000001257 hydrogen Substances 0.000 claims description 17
- 125000003837 (C1-C20) alkyl group Chemical group 0.000 claims description 16
- 125000005843 halogen group Chemical group 0.000 claims description 16
- 125000003118 aryl group Chemical group 0.000 claims description 15
- 239000003446 ligand Substances 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 13
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 125000006735 (C1-C20) heteroalkyl group Chemical group 0.000 claims description 10
- 125000006649 (C2-C20) alkynyl group Chemical group 0.000 claims description 10
- 125000003358 C2-C20 alkenyl group Chemical group 0.000 claims description 10
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- -1 phosphino group Chemical group 0.000 claims description 7
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 125000000027 (C1-C10) alkoxy group Chemical group 0.000 claims description 5
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- 125000004453 alkoxycarbonyl 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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- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 claims description 5
- 125000000213 sulfino group Chemical group [H]OS(*)=O 0.000 claims description 5
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 claims description 5
- 125000006296 sulfonyl amino group Chemical group [H]N(*)S(*)(=O)=O 0.000 claims description 5
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims description 5
- 125000006736 (C6-C20) aryl group Chemical group 0.000 claims description 4
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- 0 Cc1*(CC(CC2*(*)N(*)C2)OC2=O)c2c(*)c(C2C(*)C(*)=C3*)c1*(*)C2=C3O Chemical compound Cc1*(CC(CC2*(*)N(*)C2)OC2=O)c2c(*)c(C2C(*)C(*)=C3*)c1*(*)C2=C3O 0.000 description 6
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- 125000001424 substituent group Chemical group 0.000 description 5
- GEQBRULPNIVQPP-UHFFFAOYSA-N 2-[3,5-bis(1-phenylbenzimidazol-2-yl)phenyl]-1-phenylbenzimidazole Chemical compound C1=CC=CC=C1N1C2=CC=CC=C2N=C1C1=CC(C=2N(C3=CC=CC=C3N=2)C=2C=CC=CC=2)=CC(C=2N(C3=CC=CC=C3N=2)C=2C=CC=CC=2)=C1 GEQBRULPNIVQPP-UHFFFAOYSA-N 0.000 description 4
- VQGHOUODWALEFC-UHFFFAOYSA-N 2-phenylpyridine Chemical compound C1=CC=CC=C1C1=CC=CC=N1 VQGHOUODWALEFC-UHFFFAOYSA-N 0.000 description 4
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- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- 235000002597 Solanum melongena Nutrition 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
- 230000005525 hole transport Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 3
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- 229910052707 ruthenium Inorganic materials 0.000 description 3
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 2
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- 150000003384 small molecules Chemical class 0.000 description 2
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- 125000001294 (C1-C30) cycloalkyl group Chemical group 0.000 description 1
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
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- WITMXBRCQWOZPX-UHFFFAOYSA-N 1-phenylpyrazole Chemical compound C1=CC=NN1C1=CC=CC=C1 WITMXBRCQWOZPX-UHFFFAOYSA-N 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011593 sulfur Chemical group 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
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Abstract
Description
구분 | EL λmax (nm) |
CIE (x, y) at 10 mA |
최대 효율 ηL(cd/A) |
최대 효율 ηP (lm/W) |
최대 효율 ηex % |
전류 밀도 (mA/cm2) |
구동 전압 (V) |
실시예 7 | 510 | 0.28, 0.58 | 15.2 |
11.9 |
5.8 |
0.03 |
3 |
실시예 8 | 525 | 0.34, 0.60 |
32.8 |
29.4 |
10.7 |
0.06 |
3 |
Claims (9)
- 하기 화학식 2로 표시되는 유기 금속 착물:<화학식 2>식중,상기 M은 Ir이고;상기 CyN은 M과 결합하는 질소를 포함하는 치환 또는 비치환된 탄소수 3 내지 60의 헤테로고리기(heterocyclic group), 또는 M과 결합하는 질소를 포함하는 치환 또는 비치환된 탄소수 3 내지 60의 헤테로아릴기이며;상기 CyC는 M과 결합하는 탄소를 포함하는 치환 또는 비치환된 탄소수 4 내지 60의 탄소고리기, M과 결합하는 탄소를 포함하는 치환 또는 비치환된 탄소수 3 내지 60의 헤테로고리기, M과 결합하는 탄소를 포함하는 치환 또는 비치환된 탄소수 3 내지 60의 아릴기, 혹은 M과 결합하는 탄소를 포함하는 치환 또는 비치환된 탄소수 3 내지 60의 헤테로아릴기이고;상기 CyN-CyC는 질소(N)와 탄소(C)를 통하여 M과 결합되어 있는 사이클로메탈화 리간드(cyclometalating ligand)를 나타내며;상기 R1, R4, R5, R6, R7, R8 및 R9는 각각 독립적으로 수소, 히드록시기, 술포기, 할로겐 원자, 카르복실기, 아미노기, 니트로기, 시아노기, 치환 또는 비치환된 C1-C20 알킬기, 치환 또는 비치환된 C1-C20 알콕시기, 치환 또는 비치환된 C2-C20 알케닐기, 치환 또는 비치환된 C2-C20 알키닐기, 치환 또는 비치환된 C1-C20 헤테로알킬기, 치환 또는 비치환된 C6-C30 아릴기, 치환 또는 비치환된 C6-C30 아릴옥시기, 치환 또는 비치환된 C2-C20 알콕시카르보닐, 치환 또는 비치환된 C1-C20 아실옥시, 치환 또는 비치환된 C1-C20 아실아미노, 치환 또는 비치환된 C2-C20 알콕시카르보닐아미노, 치환 또는 비치환된 C7-C30 아릴옥시카르보닐아미노, 술포닐아미노기, 술파모일기, 카바모일기, 치환 또는 비치환된 C6-C30 아릴티오기, 치환 또는 비치환된 C3-C30 헤테로아릴티오기, 술포닐기, 술피닐기, 우레이도기, 인산아미도기, 히드록사민산기, 술피노기, 히드라진기, 이미노기, 실릴기, 포스피노기, 치환 또는 비치환된 C4-C30 시클로알킬기, 치환 또는 비치환된 C7-C30 아릴알킬기, 치환 또는 비치환된 C5-C30 헤테로아릴기, 혹은 치환 또는 비치환된 C3-C30 헤테로아릴알킬기를 나타내고, R1, R4, R5, R6, R7, R8 및 R9 중 둘 이상은 서로 융합하여 5원 내지 7원의 융합고리를 형성할 수 있다.
- 삭제
- 제1항에 있어서, 상기 사이클로메탈화 리간드(CyN-CyC)가 하기 화학식으로 나타내어지는 것 중 어느 하나인 것을 특징으로 하는 유기 금속 착물:식중,R11, R12, R13, R14 및 R15는 서로에 관계없이 일치환 또는 다치환된 작용기로서, 수소, 할로겐 원자, -OR, -N(R)2, -P(R)2, -POR, -PO2R, -PO3R, -SR, -Si(R)3, -B(R)2, -B(OR)2, -C(O)R, -C(O)OR, -C(O)N(R), -CN, -NO2, -SO2, -SOR, -SO2R, -SO3R, C1-C20 알킬기, 또는 C6-C20 아릴기이고,상기 R은 수소, 할로겐원자, 치환 또는 비치환된 C1-C20 알킬기, 치환 또는 비치환된 C1-C10 알콕시기, 치환 또는 비치환된 C2-C20 알케닐기, 치환 또는 비치환된 C2-C20 알키닐기, 치환 또는 비치환된 C1-C20 헤테로알킬기, 치환 또는 비치환된 C6-C40 아릴기, 치환 또는 비치환된 C7-C40 아릴알킬기, 치환 또는 비치환된 C7-C40 알킬아릴기, 치환 또는 비치환된 C2-C40 헤테로아릴기 및 치환 또는 비치환된 C3-C40 헤테로아릴알킬기 중에서 선택되고,Z는 S, O 또는 NR0(R0은 수소 또는 C1-C20 알킬기임)이다.
- 제1항에 있어서, 상기 질소원자와 산소원자를 통하여 중심금속과 결합하는 보조 리간드가 하기 화학식으로 나타내어지는 것을 특징으로 하는 유기 금속 착물:R21 및 R22 는 서로에 관계없이 일치환 또는 다치환된 작용기로서, 수소, 할로겐 원자, -OR, -N(R)2, -P(R)2, -POR, -PO2R, -PO3R, -SR, -Si(R)3, -B(R)2, -B(OR)2, -C(O)R, -C(O)OR, -C(O)N(R), -CN, -NO2, -SO2, -SOR, -SO2R, -SO3R, C1-C20 알킬기, 또는 C6-C20 아릴기이고,상기 R은 수소, 할로겐원자, 치환 또는 비치환된 C1-C20 알킬기, 치환 또는 비치환된 C1-C10 알콕시기, 치환 또는 비치환된 C2-C20 알케닐기, 치환 또는 비치환된 C2-C20 알키닐기, 치환 또는 비치환된 C1-C20 헤테로알킬기, 치환 또는 비치환된 C6-C40 아릴기, 치환 또는 비치환된 C7-C40 아릴알킬기, 치환 또는 비치환된 C7-C40 알킬아릴기, 치환 또는 비치환된 C2-C40 헤테로아릴기 및 치환 또는 비치환된 C3-C40 헤테로아릴알킬기 중에서 선택된다.
- 삭제
- 한 쌍의 전극 사이에 유기막을 포함하는 유기 전계 발광 소자에 있어서,상기 유기막이 제1항, 제3항, 제4항, 제5항 중 어느 한 항의 유기 금속 착물을 포함하는 것을 특징으로 하는 유기 전계 발광 소자.
- 제7항에 있어서, 상기 유기막이 발광층인 것을 특징으로 하는 유기 전계 발광 소자.
- 제7항에 있어서, 상기 유기 금속 착물의 함량이 발광층 형성재료의 총중량 100중량부를 기준으로 하여 1 내지 30중량부인 것을 특징으로 하는 유기 전계 발광 소자.
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