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Research Article

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

Ranran Zhou1, Chi-An Cheng3, Xuyi Wang4, Kun Nie1( ), Jing Wu1, Mengyun Wu1, Xiuqiang Duan1, Ziyao Hu1, Injamam Ul Huq1, Hua Wang1, Luoxin Wang1( ), Lefu Mei2, Haikun Liu5, Xiaoxue Ma1( )
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
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
Department of Bioengineering, University of California Los Angeles, Los Angeles 90095, USA
China Bluestar Chengrand Co., Ltd, High Tech Organic Fiber Key Laboratory of Sichuan Province, Chengdu 610042, China
Department of Energy and Chemical Engineering, Dongguan University of Technology, Dongguan 523808, China
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Graphical Abstract

The cesium lead halide (CsPbI3) nanowires and nanorods are modified by the anion exchange method. The modified nanowires and nanorods still have ideal morphology, and the performance and stability are improved. Moreover, nanorods and aramid/polyphenylene sulfide (ACFs/PPS) compound paper composites can be applied in the field of fluorescent anti-counterfeiting.

Abstract

As a new type of light-collecting and luminescent material, all-inorganic cesium lead halide CsPbX3 (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 CsPbX3 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 (ZnBr2) in hexane, to CsPbX3 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 CsPbI3 nanowires (NWs). Compared with the untreated NWs, the ZnBr2/hexane modified CsPbI3 NWs exhibited better fluorescence properties. Subsequently, based on the study of perovskite NWs, we investigated perovskite nanocrystal-CsPbI3 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 ZnBr2/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.

Keywords

perovskitenanocompositesphotoluminescencefluorescent anti-counterfeitingaramid/polyphenylene sulfide compound paper

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Nano Research
Volume 16 Issue 2,
February 2023
Pages 3542-3551
DOI: 10.1007/s12274-022-5041-8
Cite this article:
Zhou R, Cheng C-A, Wang X, et al. Metal halide perovskite nanocrystals with enhanced photoluminescence and stability toward anti-counterfeiting high-performance flexible fibers. Nano Research, 2023, 16(2): 3542-3551. https://doi.org/10.1007/s12274-022-5041-8
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Received: 07 July 2022
Revised: 27 August 2022
Accepted: 13 September 2022
Published: 02 October 2022
© Tsinghua University Press 2022
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