Fulgide Derivative-Based Solid-State Reversible Fluorescent Switches for Advanced Optical Memory

作     者：Yang Jiao Runqing Yang Yuchao Luo Leijing Liu Bin Xu Wenjing Tian 

作者机构：State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin UniversityChangchun 130012 

出 版 物：《CCS Chemistry》 (中国化学会会刊（英文）)

年 卷 期：2022年第4卷第1期

页      面：132-140页

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(nos.21835001,51773080,21674041,and 52073116) Program for Changbaishan Scholars of Jilin Province,and the“Talents Cultivation Program”of Jilin University 

主　　题：solid-state fluorescent switch fulgide AIE anticounterfeiting information encryption 

摘      要：Solid-state fluorescent switches with reversible luminescence characteristics have attracted considerable attention because of their broad applications in advanced photonics,such as anticounterfeiting inks,optical writing and erasing,and biological ***,we have fabricated a solid-state reversible fluorescent switch under alternating UV(365 nm)and visible light treatments based on a fulgide(FUL)-functionalized tetraphenylethylene(TPE)derivative(TPE-FUL)containing a photochromic group FUL and aggregation-induced emission(AIE)luminogen ***-FUL exhibited excellent reversible absorption and luminescence owing to the interconversion between open TPE-FUL(O-TPE-FUL)and closed TPE-FUL(C-TPE-FUL).Photophysical and theoretical investigations revealed that the luminescence of O-TPE-FUL is based on the local excited state of the TPE moiety,whereas the fluorescence quenching of C-TPE-FUL originates from the intramolecular charge transfer from the TPE to the FUL *** excellent reversible photoswitching properties of TPE-FUL in the solid state allows for its potential use in advanced optical memory applications,such as anticounterfeiting,optical writing and erasing,and information encryption.