| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
분자전자 부문위원회 Ⅰ,Ⅱ |
| 제목 |
Efficient Blue Phosphorescent Ir-Complexes with Terphenyl Modified 2-Phenyl Imidazole Ligands |
| 초록 |
TPIF and ITPIF, are prepared in which the phenyl moiety of phenylimidazole was modified with electron-withdrawing substituents (e.g., -F). With terphenyl modification and further color tuning by adding fluorine and isopropyl groups, ITPIF showed blue phosphorescence at 456 nm as well as high quantum yields (40% in solution and 76% in PMMA film). This ITPIF complex is selected as a dopant material in the structure of blue phosphorescent organic light-emitting diodes. The highly efficient blue OLED can be realized with a maximum EQE of over 16.4% with CIE value of (0.18, 0.27). Our results demonstrate that bulky substituents are excellent candidates for the achievement of efficient phosphorescent materials and corresponding OLED devices. |
| 저자 |
이상훈, 이대한, 서윤정, 윤보선, 김소연, 김진형, 강상욱, 손호진
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| 소속 |
고려대 |
| 키워드 |
Iridium(III) complexes; OLED
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| E-Mail |
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