Laser-rewritable room temperature phosphorescence based on in-situ polymerized tartaric acid  

作　　者：Tuo-Yu Zhou Tai-Wen Li Hai-Fu Zhang Rui-Lin Chai Qian Zhao Penglin Zhang Guang-Yue Li Qian-Wen Wang Chang Li Yu Shu Zhi Fan Sheng-Hua Li 

机构地区：[1]College of Chemical Engineering and Materials Science,College of Sciences,Tianjin University of Science&Technology,Tianjin 300457,China [2]College of Chemical Engineering,North China University of Science and Technology,Tangshan 063210,China [3]Tianjin Key Laboratory of Multiplexed Identification for Port Hazardous Chemicals,Tianjin University of Science&Technology,Tianjin 300457,China

出　　处：《Science China Chemistry》2024年第9期3029-3038,共10页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China(21801185,22001194,22201208);the Scientific Research Project of Tianjin Educational Committee(2018KJ109)。

摘　　要：Organic room temperature phosphorescence(RTP)materials have potential applications in information technology and bioimaging.However,the precise control of the afterglow in reversible manners remains challenging for organic matters.Here,we report a kind of organic RTP material fabricated by simple heating mixtures of tartaric acid(TA)and aromatic acids,which can switch their phosphorescence by laser.Those mixtures show tunable phosphorescence from indigo to orange with phosphorescence efficiency of up to 53.99% due to locking different organic luminogens by the TA-formed matrix through the noncovalent interactions.The afterglow of those materials lasts a few seconds and disappears by water fumigation,which can be repeated in response to wet/heat stimuli.With drop-casting those materials on glass slides,a laser-repatternable phosphorescence is achieved by facile laser direct writing and quenched by water cyclically.Those results open the opportunity for the design of smart stimuli-responsive phosphorescence materials from sustainable natural products.

关 键 词：room temperature phosphorescence tunable afterglows tartaric acid laser direct writing stimuli-response 

分 类 号：TB34[一般工业技术—材料科学与工程]