Metal halide perovskite nanocrystals with enhanced photoluminescence and stability toward anti-counterfeiting highperformance flexible fibers  

作　　者：Ranran Zhou Chi-An Cheng Xuyi Wang Kun Nie Jing Wu Mengyun Wu Xiuqiang Duan Ziyao Hu Injamam Ul Huq Hua Wang Luoxin Wang Lefu Mei Haikun Liu Xiaoxue Ma 

机构地区：[1]School of Materials Science and Engineering,Hubei Key Laboratory for New Textile Materials and Applications,Key Laboratory of Polyphenylene Sulfide Fiber and Application in Textile Industry,and State Key Laboratory of New Textile Materials&Advanced Processing Technology,Wuhan Textile University,Wuhan 430200,China [2]Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes,National Laboratory of Mineral Materials,School of Materials Science and Technology,China University of Geosciences(Beijing),Beijing 100083,China [3]Department of Bioengineering,University of California Los Angeles,Los Angeles 90095,USA [4]China Bluestar Chengrand Co.,Ltd,High Tech Organic Fiber Key Laboratory of Sichuan Province,Chengdu 610042,China [5]Department of Energy and Chemical Engineering,Dongguan University of Technology,Dongguan 523808,China

出　　处：《Nano Research》2023年第2期3542-3551,共10页纳米研究（英文版）

基　　金：supported by the Key Laboratory of Testing and Tracing of Rare Earth Products for State Market Regulation,Jiangxi University of Science and Technology(No.TTREP2022YB04);the National Natural Science Foundation of China(Nos.51872269 and 52078394);the Science and Technology Research Project of Hubei Provincial Department of Education(No.B2021091);Key Laboratory for New Textile Materials and Applications of Hubei Province,Wuhan Textile University(No.FZXCL202107);the Open Project Program of High-Tech Organic Fibers Key Laboratory of Sichuan Province;China and National Project Cultivation Plan of Wuhan Textile University;supported by the Graduate Innovation Fund Project of Wuhan Textile University。

摘　　要：As a new type of light-collecting and luminescent material,all-inorganic cesium lead halide CsPbX_(3)(X=Cl,Br,I)perovskite nanocrystals(NCs)are expected to have a wide range of applications in the fields of photovoltaics,optoelectronics,and fluorescence anti-counterfeiting,etc.Therefore,improving the fluorescence performance and stability of CsPbX_(3)perovskite NCs to prompt their applications would promise both fundamental and practical significance for in-depth research in the field of halide perovskites.In this paper,we developed a modification strategy to introduce a halogen source,zinc bromide(ZnBr_(2))in hexane,to CsPbX_(3)perovskite that can be conducted under atmospheric conditions with reduced reaction cost and easier operation.The first work in this paper was to apply the modification strategy to CsPbI_(3)nanowires(NWs).Compared with the untreated NWs,the ZnBr_(2)/hexane modified CsPbI_(3)NWs exhibited better fluorescence properties.Subsequently,based on the study of perovskite NWs,we investigated perovskite nanocrystal-CsPbI_(3)nanorods(NRs)with different morphologies and sizes.It was found that the luminescence properties of nanorods(NRs)were superior.Later,we infiltrated the modified NRs into the aramid/polyphenylene sulfide(ACFs/PPS)composite paper yielded from our previous work to study its fluorescence performance for anti-counterfeiting.Their luminescence properties under ultraviolet light irradiation enable better performance in fluorescence anti-counterfeiting.The ZnBr_(2)/hexane modification strategy and the applications studied in this work will expand the scope of perovskite research,laying the foundation for the applications of fluorescent anti-counterfeiting,nano-photoelectric devices,and fluorescent composite materials.

关 键 词：PEROVSKITE nanocomposites PHOTOLUMINESCENCE fluorescent anti-counterfeiting aramid/polyphenylene sulfide compound paper 

分 类 号：TB383[一般工业技术—材料科学与工程]