Locking the phenyl rings of tetraphenylethene step by step: understanding the mechanism of aggregation-induced emission
Junqing Shi(Beijing Normal University), Ning Chang(Beijing Normal University), Cuihong Li(Beijing Normal University), Ju Mei(Zhejiang University), Chunmei Deng(Chinese Academy of Sciences), Xiaoliang Luo(Beijing Normal University), Zhengping Liu(Beijing Normal University), Zhishan Bo(Beijing Normal University), Yong Qiang Dong(Beijing Normal University), Ben Zhong Tang(Hong Kong University of Science and Technology)
Cited by 258Open Access
Abstract
Stepwise locking of phenyl rings of tetraphenylethene increases the emission efficiency of luminogen solutions gradually, thus verifying the restriction of intramolecular rotation (RIR) mechanism of the aggregation induced emission phenomenon. The emission of the luminogen with one "O" bridge could be tuned reversibly in solid state through repeated heating and grinding.
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