Blue AIEgens bearing triphenylethylene peripheral:adjustable intramolecular conjugation and good device performance

作     者：Can Wang Le Li Xuejun Zhan Zhijun Ruan Yujun Xie Quanyuan Hu Shanghui Ye Qianqian Li Zhen Li 

作者机构：School of Chemistry and Chemical Engineering Hubei University Institute of Advanced Materials (IAM) Nanjing University of Posts and Telecommunications (NUPT) Department of Chemistry Hubei Key Laboratory on Organic and Polymeric Opto-Electronic Materials Wuhan University 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2016年第61卷第22期

页      面：1746-1755页

核心收录：

学科分类：08[工学] 0803[工学-光学工程] 

基　　金：supported by the National Natural Science Foundation of China (21325416 and 51573140) the National Basic Research Program of China (2013CB834701) 

主　　题：Blue emission Aggregation inducedemission Triphenylethylene OLEDs Intramolecular conjugation 

摘      要：The new approaches to construct deep blue aggregation-induced emission （ALE） materials have been explored, which control the conjugation by two different strategies, to make a great step for the commercialization of organic light-emitting diodes. In order to shorten the intramolecular conjugation length, triphenylethylene （tPE） was utilized to construct blue AIEgens as peripheral groups, instead of tetraphenylethylene （TPE）, the famous AIE star molecule, to yield three blue AIEgens of 3,4-BtPE-PI, 4,4- BtPE-PI and 4,4-BtPE-PPI. Nondoped electroluminescence devices are fabricated by using these three AIEgens as the emitting material layer, the best performance of 3.8 cd/A as the maximum current efficiency achieved at the commission internationale de l＇Eclairage coordinates of （0.17, 0.18）.