| 학회 |
한국고분자학회 |
| 학술대회 |
2016년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
41권 1호 |
| 발표분야 |
대학원생 구두발표 (영어발표, 발표15분) |
| 제목 |
Crystal Organic Light-Emitting Diodes with Perfectly Oriented Platinum Complex Emitting Layer |
| 초록 |
The EQE of the emitted light from the horizontally oriented emitting dipoles in an OLED can reach 45% that is much higher than isotropically oriented transition dipoles. Large effort has been poured to increase the horizontal emitting dipole ratio (Θ) to get 70~82%. However, it will be difficult to obtain an even higher Θ due to the amorphous nature of typical emitting layers. In this regard, organic crystals would be the better emitters because of the orientational and positional ordering. In this work, we realized a crystal OLED with unprecedented high EQE of 38.8% using the perfectly oriented Pt based thin film emitting layer possessing PLQY of 96% and Θ of 93%. We investigated the emitting dipole orientation of the thin films fabricated using Pt complexes and discussed the structural relationship between X-ray structural analyses and structures in thin films based on quantum chemical calculations.1 References 1. K.-H. Kim et al. Adv. Mater. 2016. adma.201504451 In press. |
| 저자 |
김권현1, Jia-Ling Liao2, 이시우3, 문창기1, 김효정3, Yun Chi2, 김장주1
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| 소속 |
1서울대, 2National Tsing Hua Univ., 3부산대 |
| 키워드 |
OLED; Phosphorescence; Platinum complex; emitting dipole orientation
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| E-Mail |
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