期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 142, 期 46, 页码 19468-19472出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.0c10081
关键词
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资金
- Research Foundation for the Electrotechnology of Chubu
- Hoso Bunka Foundation
- Murata Science Foundation
- Nippon Soda Co., Ltd.
- Cooperative Research Program of Network Joint Research Center for Materials and Devices
- [JP18H02048]
- [JP19K15651]
Herein, we demonstrate that the strategic implementation of electron-accepting tricoordinate boron and electron-donating carbazole subunits into polycyclic aromatic hydrocarbons (PAHs) produces a family of attractive full-color luminophores that can emit narrowband and efficient thermally activated delayed fluorescence (TADF). A versatile modular design for these boron- and carbazole-embedded PAHs can facilitate the systematic modulation of their photophysical and optoelectronic properties. Organic light-emitting diodes that utilize these PAHs as TADF emitters demonstrate narrowband electroluminescence from blue to red, achieving high maximum external quantum efficiencies of 29.3%, 31.8%, and 22.0% for blue, green, and red, respectively.
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