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作者： Xiqi Zhang, Zhenguo Chi, , Bingjia Xu, Haiyin Li, Zhiyong Yang, Xiaofang Li, Siwei Liu, Yi Zhang, Jiarui Xu,

PCFM Lab and DSAPM Lab, OFCM Institute, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China

 

摘要：A series of new aggregation-induced emission enhancement derivatives from bis(triphenylethylene) with strong blue-light-emitting properties and high thermal stability have been synthesized. Their maximum fluorescence emission wavelengths range between 464–468 nm, with fluorescence quantum yields of 0.58–0.88. Their glass transition temperatures range from 125 °C to 178 °C. The obtained experimental results demonstrate the different aggregation-induced emission enhancement phenomena caused by the effect of solvent and formation of both H- and J- aggregation states. An emitting device was fabricated using a bis(triphenylene) derivative in the emitting layer which exhibited a luminance efficiency of up to 2 cd/A with a maximum brightness of 548 cd/m2.

 

關鍵詞：Aggregation-induced emission enhancement; High glass transition temperature; Blue light emission; Bis(triphenylethylene) derivatives; Device; Synthesis