Facile synthesis strategy for cesium tin halide perovskite crystals toward light emitting devices and anti-counterfeiting flexible fiber

Ziyao Hu; Kun Nie; Xuyi Wang; Xiuqiang Duan; Ranran Zhou; Mengyun Wu; Xiaoxue Ma; Xiaodong Zhang; Luoxin Wang; Lefu Mei; Hua Wang

doi:10.1039/d3nr00301a

Facile synthesis strategy for cesium tin halide perovskite crystals toward light emitting devices and anti-counterfeiting flexible fiber

Nanoscale. 2023 Mar 9;15(10):4893-4898. doi: 10.1039/d3nr00301a.

Authors

Ziyao Hu¹, Kun Nie^{1

2}, Xuyi Wang³, Xiuqiang Duan¹, Ranran Zhou¹, Mengyun Wu¹, Xiaoxue Ma¹, Xiaodong Zhang¹, Luoxin Wang¹, Lefu Mei⁴, Hua Wang¹

Affiliations

¹ Hubei Key Laboratory for New Textile Materials and Applications and State Key Laboratory of New Textile Materials & Advanced Processing Technology, School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, P. R. China. knie@wtu.edu.cn.
² Key Laboratory of Testing and Tracing of Rare Earth Products for State Market Regulation, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China.
³ China Bluestar Chengrand Co., Ltd, High Tech Organic Fiber Key Laboratory of Sichuan Province, Chengdu 610042, P. R. China. xuyiwang2015@163.com.
⁴ 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, P. R. China.

PMID: 36779655
DOI: 10.1039/d3nr00301a

Abstract

All-inorganic metal halide perovskites are widely studied because of their excellent photoelectric properties. However, due to the toxicity of CsPbX₃ (X = Cl, Br, I) perovskites, it is difficult to apply them on a large scale. The lead-free nature and air stability make Cs₂SnX₆ (X = Cl, Br, I) perovskites possible candidates to replace CsPbX₃ perovskites. Herein, we report the perovskite crystals (PCs) based on Te(IV)-doped Cs₂SnCl₆: Cs₂Sn_1-xTe_xCl₆. Cs₂Sn_1-xTe_xCl₆ PCs showed yellow emission under a 365 nm ultraviolet lamp. The photoluminescence quantum yield (PLQY) of Cs₂Sn_0.94Te_0.06Cl₆ PCs was 57.09%, which was proposed to be from the triplet Te(IV) ion ³P₁ → ¹S₀ self-trapping excitons (STE) recombination. The perovskite crystals can be used to fabricate light-emitting diodes (LEDs). The fiber paper prepared from aramid chopped fibers (ACFs) and polyphenylene sulfide (PPS) fibers showed a bright yellow light under 365 nm ultraviolet light after being post-processed with Cs₂Sn_1-xTe_xCl₆ PCs solution. The ACFs/PPS compound fiber paper modified with Cs₂Sn_1-xTe_xCl₆ PCs maintained exceptional optical properties and could be stored in air for more than 4500 h. The fluorescence performance of the modified ACFs/PPS compound fiber paper could be applied to fluorescence anti-counterfeiting. The modification strategy and the applications in this work will provide a good choice for studying the optical performance of perovskites and broaden the application of ACFs/PPS compound fiber paper.