Multicolor Circularly Polarized Luminescence of a Single-Component System Revealing Multiple Information Encryption  

作　　者：Ying Hu Zizhao Huang Itamar Willner Xiang Ma 

机构地区：[1]Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center,Frontiers Science Center for Materiobiology and Dynamic Chemistry,School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237 [2]Institute of Chemistry,The Center for Nanoscience and Nanotechnology,The Hebrew University of Jerusalem,Jerusalem 91904

出　　处：《CCS Chemistry》2024年第2期518-527,共10页中国化学会会刊（英文）

基　　金：support from the National Key Research and Development Program of China(grant no.2022YFB3203500);the National Natural Science Foundation of China(grant nos.21788102,22125803,and 22020102006);project support by the Shanghai Municipal Science and Technology Major Project(grant no.2018SHZDZX03);the Program of Shanghai Academic/Technology Research Leader(grant no.20XD1421300);the Fundamental Research Funds for the Central Universities.

摘　　要：Metal-free materials with multicolor tunable circularly polarized luminescence(CPL)are attractive because of their potential applications in information storage and encryption.Here,we designed two enantiomers composed of chiral dialkyl glutamides and achiral vibration-induced emission(VIE)moiety,which can switch on CPL after a simple gelation process.It is noteworthy that the CPL colors vary in different solvents,and this is attributed to various self-assembly-induced microstructures,in which the VIE moiety is restrained to different degrees.Accordingly,a multidimensional code system composed of a quick response code,a ultraviolet(UV)light-activated color code,and a CPL information figure was constructed.To our satisfaction,the system possesses multiple information-storage functions.The orthogonal anticounterfeiting and CPLenhanced encryption functions also improve the system information encryption ability.In brief,this study provides a practical example of CPL applied to information security and an effective approach to obtain a single-component color-tunable CPL material with multiple information storage and encryption functions as well.

关 键 词：circularly polarized luminescence information storage and encryption multicolor tunable single component vibration-induced emission 

分 类 号：O62[理学—有机化学]