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Force‐Induced Turn‐On Persistent Room‐Temperature Phosphorescence in Purely Organic Luminogen
Author(s) -
Ren Jia,
Wang Yunsheng,
Tian Yu,
Liu Zhenjiang,
Xiao Xiangheng,
Yang Jie,
Fang Manman,
Li Zhen
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202101994
Subject(s) - phosphorescence , chemistry , photochemistry , thermal , materials science , nanotechnology , optoelectronics , fluorescence , thermodynamics , optics , physics
Research of purely organic room‐temperature phosphorescence (RTP) materials has been a hot topic, especially for those with stimulus response character. Herein, an abnormal stimulus‐responsive RTP effect is reported, in which, purely organic luminogen of Czs‐ph‐3F shows turn‐on persistent phosphorescence under grinding. Careful analyses of experimental results, coupled with the theoretical calculations, show that the transition of molecular conformation from quasi‐axial to quasi‐equatorial of the phenothiazine group should be mainly responsible for this exciting result. Furthermore, the applications of stylus printing and thermal printing are both successfully realized, based on the unique RTP effect of Czs‐ph‐3F.