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Highly efficient orange phosphorescent organic light-emitting diodes with (4-(3,5-dimethylphenyl)-2-(m-tolyl)pyridine)-based iridium complex
- Cheon, Hyung Jin;
- Joo, Chul Woong;
- Lee, Da Yeon;
- Huseynova, Gunel;
- Lee, Jae-Hyun;
- ... Kim, Yun-Hi;
- 외 1명
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8초록
A new (4-(3,5-dimethylphenyl)-2-(m-tolyl)pyridine)-based iridium complex was synthesized for highly efficient orange phosphorescent organic light-emitting diodes (PhOLEDs). The effect of introduction of a methyl substituent into the 4-position of the phenyl ring in a phenylpyridine chelating ligand was studied. The PhOLEDs based on this newly-synthesized iridium complex exhibited maximum external quantum and current efficiencies of 20.33% and 61.16 cd/A, respectively. These respective values maintained over 15% and 48 cd/A even at a very high luminance of 15000 cd/m(2) with Commission Internationale de l'Eclairage coordinates of (0.49, 0.51).
키워드
Organic light-emitting diodes; Orange emitter; Phosphorescent; External quantum efficiency; Iridium complex; EXTERNAL QUANTUM EFFICIENCY; DEEP-BLUE PHOSPHORESCENCE; EMITTERS
- 제목
- Highly efficient orange phosphorescent organic light-emitting diodes with (4-(3,5-dimethylphenyl)-2-(m-tolyl)pyridine)-based iridium complex
- 저자
- Cheon, Hyung Jin; Joo, Chul Woong; Lee, Da Yeon; Huseynova, Gunel; Lee, Jae-Hyun; Lee, Jonghee; Kim, Yun-Hi
- 발행일
- 2021-02
- 유형
- Article
- 권
- 186