Organometallic compound, organic light-emitting device, and lighting device employing the same
AssigneesIndustrial Technology Research Institute, National Tsing Hua University
InventorsYun Chi, Yu-Shan Tsai, Jia-Ling Liao, Mei-Rurng Tseng, Jin-Sheng Lin
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Abstract
Organometallic compounds, organic light-emitting devices, and lighting devices employing the same are provided. The organometallic compound has a chemical structure represented by formula (I) or (II): wherein n is 1 or 2; each R1 is independent and can be hydrogen, C1-8 alkyl, C1-8 alkoxy, C5-10 aryl, or C2-8 heteroaryl; each R2 is independent and can be hydrogen, C1-8 fluoroalkyl, or C1-8 alkyl; A is N, or CH; B is N, or CH; D is N, or C—R3, wherein R3 is H, or C1-8 alkyl; and R1 is not hydrogen when R2 is hydrogen.
Claims20
An organometallic compound having a Formula (I) or Formula (II), of:
- wherein, n is 1 or 2;
- each R1 is independently hydrogen, C1-8 alkyl, C1-8 alkoxy, C5-10 aryl, or C2-8 heteroaryl;
- each R2 is independently hydrogen, C1-8 fluoroalkyl, or C1-8 alkyl;
- A is N, or CH;
- B is N, or CH;
- D is N, or C—R3, wherein R3 is H, or C1-8 alkyl;
- and R1 is not hydrogen when R2 is hydrogen, and wherein one of following two conditions (1) and (2) is met:
- (1) X and Z are N, W is CH, Y is C—R4, wherein R4 is hydrogen, C1-8 alkyl, C1-8 fluoroalkyl, C1-8 alkoxy, C5-10 aryl, or C2-8 heteroaryl, and at least one of R2 and R4 is fluoroalkyl;
- and (2) W and Y are N, Z is CH, X is C—R4, wherein R4 is hydrogen, C1-8 alkyl, C1-8 fluoroalkyl, C1-8 alkoxy, C5-10 aryl, or C2-8 heteroaryl, and at least one of R2 and R4 is fluoroalkyl;
- and wherein R2 is CF3 when A is CH, n is 2, X and Z are N, W is CH and Y is C—R4.
An organic light-emitting device, comprising:
- a pair of electrodes;
- and
- an electroluminescent element, disposed between the pair of electrodes, wherein the electroluminescent element comprises an organometallic compound, wherein the organometallic compound has a Formula (I) or Formula (II), of:
- wherein, n is 1 or 2;
- each R1 is independently hydrogen, C1-8 alkyl, C1-8 alkoxy, C5-10 aryl, or C2-8 heteroaryl;
- each R2 is independently hydrogen, C1-8 fluoroalkyl, or C1-8 alkyl;
- A is N, or CH;
- B is N, or CH;
- D is N, or C—R3, wherein R3 is H, or C1-8 alkyl;
- and R1 is not hydrogen when R2 is hydrogen, and wherein one of following two conditions (1) and (2) is met:
- (1) X and Z are N, W is CH, Y is C—R4, wherein R4 is hydrogen, C1-8 alkyl, C1-8 fluoroalkyl, C1-8 alkoxy, C5-10 aryl, or C2-8 heteroaryl, and at least one of R2 and R4 is fluoroalkyl;
- and (2) W and Y are N, Z is CH, X is C—R4, wherein R4 is hydrogen, C1-8 alkyl, C1-8 fluoroalkyl, C1-8 alkoxy, C5-10 aryl, or C2-8 heteroaryl, and at least one of R2 and R4 is fluoroalkyl;
- and wherein R2 is CF3 when A is CH, n is 2, X and Z are N, W is CH and Y is C—R4.
Dependencies are inferred from the claim text.