Di(biphenyl)silane and carbazole based bipolar host materials for highly efficient blue phosphorescent OLEDs
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- 作者：Gyeong Woo Kima ; 1 ; Doo Ri Yangb ; 1 ; Yong Cheol Kima ; Hye In Yanga ; Jin Guo Fanb ; Choong-Hun Leec ; d ; Kyu Yun Chaib ; geuyoon@wonkwang.ac.kr" class="auth_mail" title="E-mail the corresponding author ; Jang Hyuk Kwona ; jhkwon@khu.ac.kr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Host material ; Blue phosphorescent ; Carbazole ; Silane ; Biphenyl ; Phosphorescent
- 刊名：Dyes and Pigments
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：136
- 期：Complete
- 页码：8-16
- 全文大小：2422 K
文摘
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Three silane based bipolar host materials with high triplet energy are designed and synthesized.
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Reduction of triplet energy is minimized by restricting conjugation.
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Very high glass transition temperature (197 °C) due to rigid molecular structure.
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Firpic phosphorescent blue OLED with high EQE (20.9%).