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

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Nano Research 2023年第2期16卷 3542-3551页

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 School of Materials Science and Engineering Hubei Key Laboratory for New Textile Materials and ApplicationsKey Laboratory of Polyphenylene Sulfide Fiber and Application in Textile Industryand State Key Laboratory of New Textile Materials&Advanced Processing TechnologyWuhan Textile UniversityWuhan 430200China Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of Geosciences(Beijing)Beijing 100083China Department of Bioengineering University of California Los AngelesLos Angeles 90095USA China Bluestar Chengrand Co. LtdHigh Tech Organic Fiber Key Laboratory of Sichuan ProvinceChengdu 610042China Department of Energy and Chemical Engineering Dongguan University of TechnologyDongguan 523808China

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,***,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 *** 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 *** 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 ***,based on the study of perovskite NWs,we investigated perovskite nanocrystal-CsPbI_(3)nanorods(NRs)with different morphologies and *** was found that the luminescence properties of nanorods(NRs)were ***,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 *** luminescence properties under ultraviolet light irradiation enable better performance in fluorescence *** 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

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