Manipulating the LUMO distribution of quinoxaline-containing architectures to design electron transport materials: Efficient blue phosphorescent organic light-emitting diodes
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- 作者：Xiaojun Yina ; Hengda Sunb ; Weixuan Zenga ; Yepeng Xianga ; Tao Zhoua ; Dongge Mab ; md1014@ciac.jl.cn" class="auth_mail" title="E-mail the corresponding author ; Chuluo Yanga ; clyang@whu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Electron transport materials ; Organic light emitting diodes ; Phosphorescence ; Quinoxaline
- 刊名：Organic Electronics
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：37
- 期：Complete
- 页码：439-447
- 全文大小：2111 K
文摘
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Four new quinoxaline-containing compounds with highly twisted structures were designed as electron transport materials.
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The LUMO distributions of these compounds can be manipulated by adjusting the locations of quinoxaline moieties.
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Using them as ETLs, the Firpic-based electrophosphorescent devices achieved a ηc,max of 30.2 cd A−1 and a ηext,max of 14.2%.
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These efficiencies reveal smaller roll-offs at high luminance in contrast to the TmPyPB based device.