全桥连三苯胺衍生物作为颜色可调的热活化延迟荧光发射体
Fully Bridged Triphenylamine Derivatives as Color-Tunable Thermally Activated Delayed Fluorescence Emitters.
作者信息
Zou Sheng-Nan, Peng Chen-Chen, Yang Sheng-Yi, Qu Yang-Kun, Yu You-Jun, Chen Xing, Jiang Zuo-Quan, Liao Liang-Sheng
机构信息
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, Jiangsu P.R. China.
出版信息
Org Lett. 2021 Feb 5;23(3):958-962. doi: 10.1021/acs.orglett.0c04159. Epub 2021 Jan 13.
Three emissive bridged-triphenylamine derivatives are designed and synthesized by incorporating carbon (DQAO), oxygen (OQAO), and sulfur (SQAO) atoms with two carbonyl groups. The fully bridged geometry and unique frontier molecular orbital distribution reveal its potential as narrowband thermally activated delayed fluorescence emitters. DQAO-, OQAO-, and SQAO-based organic light-emitting diodes exhibit the maximum external quantum efficiency (EQE) of 15.2%, 20.3%, and 17.8% for blue, green, and yellow, respectively.
通过将含有两个羰基的碳（DQAO）、氧（OQAO）和硫（SQAO）原子结合，设计并合成了三种发光桥连三苯胺衍生物。完全桥连的几何结构和独特的前沿分子轨道分布揭示了其作为窄带热激活延迟荧光发射体的潜力。基于DQAO、OQAO和SQAO的有机发光二极管在蓝色、绿色和黄色发光时的最大外量子效率（EQE）分别为15.2%、20.3%和17.8%。
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