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Phosphine oxide type bipolar host material for high quantum efficiency in thermally activated delayed fluorescent device.

作者信息

Kim Bo Seong, Lee Jun Yeob

机构信息

Department of Polymer Science and Engineering, Dankook University Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea.

出版信息

ACS Appl Mater Interfaces. 2014 Jun 11;6(11):8396-400. doi: 10.1021/am501301g. Epub 2014 Apr 28.

DOI:10.1021/am501301g
PMID:24773083
Abstract

Highly efficient thermally activated delayed fluorescence devices were developed using a bipolar host material, 2,7-bis(diphenylphosphoryl)-9-phenyl-9H-carbazole (PPO27), derived from carbazole and diphenylphosphine oxide. The PPO27 host was effective for good charge balance and energy transfer from the PPO27 host to thermally activated delayed fluorescence dopant. The PPO27 device doped with (4s,6s)-2,4,5,6-tetra(9H-carbazol-9-yl)isophthalonitrile dopant could realize a high quantum efficiency of 24.2%.

摘要

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引用本文的文献

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Suppressing Efficiency Roll-Off of TADF Based OLEDs by Constructing Emitting Layer With Dual Delayed Fluorescence.通过构建具有双延迟荧光的发光层来抑制基于热激活延迟荧光的有机发光二极管的效率滚降
Front Chem. 2019 Apr 30;7:302. doi: 10.3389/fchem.2019.00302. eCollection 2019.
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Persistent Dimer Emission in Thermally Activated Delayed Fluorescence Materials.
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