福建师范大学学报（自然科学版）2025，Vol.41Issue(2)：96-103,8.DOI:10.12046/j.issn.1000-5277.2024050030
双壳层包覆稀土离子掺杂CsPbCl3纳米晶的多色荧光防伪
Multicolor Fluorescent Anti-Counterfeiting of Rare Earth Ion-Doped CsPbCl3 Nanocrystals with Double-Shell Layers
摘要
Abstract
All inorganic perovskite nanocrystals have been widely used in photoelectric detec-tor,solar cells,anti-counterfeiting,and other fields due to their high fluorescence quantum yield,precisely tunable band gap,and narrow emission peaks.The CsPbCl3 perovskite nanocrystals are successfully prepared using rare earth ion doping and double-shell coating methods,resulting in fluorescent inks and powders with strong stability.The fluorescence properties and related structural properties of rare earth ion-doped CsPbCl3 perovskite nanocrystals with different shell coatings are investigated.The results show that Tb3+and Eu3+ion-doped CsPbCl3 perovskite nanocrystals with double-shell layers exhibit good fluorescence properties,and maintain the tetragonal crystal system structure of CsPbCl3.The fluorescent ink and powder can be used for information encryption and latent fingerprint identification utilizing the multicolor fluorescence of different rare earth ion-doped perovskite nanocrystals.The three fluorescent inks exhibit different responses to water,which enriches the information encryption methods.The fluorescent powder with double-shell layers enhances the practicality of latent fingerprint identification due to its high environmental stability.These multicolor fluorescence perovskite nanocrystals show promising applications in the field of information anti-counterfeiting.关键词
钙钛矿纳米晶/稀土离子/双壳层/多色荧光/防伪/信息加密/潜指纹识别Key words
perovskite nanocrystals/rare earth ions/double-shell layers/multicolor fluores-cence/anti-counterfeiting/information encryption/latent fingerprint identification分类
物理学引用本文复制引用
师慧,张力夫,闫奥,龚梦梦,武波亨,吕泽华,张瑞..双壳层包覆稀土离子掺杂CsPbCl3纳米晶的多色荧光防伪[J].福建师范大学学报（自然科学版）,2025,41(2):96-103,8.基金项目
山西省自然科学基金项目(20210302123221、202203021222207、202303021222175、202303021212220) （20210302123221、202203021222207、202303021222175、202303021212220）
