Ren Jia, Wang Yunsheng, Tian Yu, Liu Zhenjiang, Xiao Xiangheng, Yang Jie, Fang Manman, Li Zhen
Institute of Molecular Aggregation Science, Tianjin University, Tianjin, 300072, China.
School of Physics and Technology, Wuhan University, Wuhan, Hubei, 430072, China.
Angew Chem Int Ed Engl. 2021 May 25;60(22):12335-12340. doi: 10.1002/anie.202101994. Epub 2021 Apr 26.
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.
纯有机室温磷光（RTP）材料的研究一直是一个热门话题，特别是对于那些具有刺激响应特性的材料。在此，报道了一种异常的刺激响应RTP效应，其中，纯有机发光剂Czs-ph-3F在研磨时显示出开启式持久磷光。对实验结果的仔细分析，结合理论计算，表明吩噻嗪基团的分子构象从准轴向到准赤道的转变应该是这一令人兴奋的结果的主要原因。此外，基于Czs-ph-3F独特的RTP效应，成功实现了触控笔打印和热敏打印的应用。
