Zn doping and Mg doping manganese(II)-based perovskites toward sensor, rewritable paper and anti-counterfeiting applications

作     者：Sun, Chun Cui, Jiazhi Zhao, Yiwei Deng, Zhihui Ding, Yelin Lian, Kai Zhao, Junhuan Zhai, Zhongjie Han, Jiachen Wang, Zhengtong Liu, Xiaohui Bi, Wengang 

作者机构：Hebei Univ Technol State Key Lab Reliabil & Intelligence Elect Equipm 5340 Xiping Rd Tianjin 300401 Peoples R China Hebei Univ Technol Sch Elect & Informat Engn Tianjin Key Lab Elect Mat & Devices 5340 Xiping Rd Tianjin 300401 Peoples R China SMIC North Integrated Circuit Mfg Beijing Corp 18 Wenchang Ave Beijing Peoples R China Zhejiang Ruico Adv Mat Co Ltd 188 Liangshan Rd Huzhou 313018 Peoples R China Inner Mongolia Univ Sci & Technol Baotou Teachers Coll Key Lab Magnetism & Magnet Mat Autonomous Reg 3 Kexue Rd Baotou 014030 Peoples R China Chinese Univ Hong Kong Sch Sci & Engn Shenzhen 518172 Guangdong Peoples R China Shanxi Key Lab Adv Semicond Optoelect Devices & In Dept Clin Lab Jincheng 048000 Peoples R China 

出 版 物：《JOURNAL OF ALLOYS AND COMPOUNDS》 (J Alloys Compd)

年 卷 期：2025年第1013卷

核心收录：

学科分类：080603[工学-有色金属冶金] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：Natural Science Foundation of Hebei Province [E2023202033] S & T Program of Hebei [24464401D] Inner Mongolia Natural Science Foundation Youth Fund Project [2024QN05052] Baotou Teachers' College internal research project Open Project Program of Shanxi Key Laboratory of Advanced Semiconductor Optoelectronic Devices and Integrated Systems [2024SZKF11] 

主　　题：Manganese-based bromide Perovskite Doping Anti-counterfeiting Temperature detection 

摘      要：Environmentally friendly metal halides with reversible transformation of structure and luminescence properties have become a focal point of interest in the areas of anti-counterfeiting and sensors. Herein, Zn2 +-doped DMAMnBr3 and Mg2+-doped DMA2MnBr4 were successfully synthesized using the evaporation-crystallization method. After doping Zn2+ in DMAMnBr3, the photoluminescence quantum yield (PLQY) is enhanced from 18 % to 40%. For DMAMnBr3, the introduction of Zn2+ ions also accelerates the color-changing rate upon water absorption due to the tendency of Zn2+ to form tetrahedral structures. Besides, the DMAMn0.8Zn0.2Br3 exhibits excellent sensitivity. Hence, a temperature detection software is developed, which is capable of monitoring temperatures in the range of 323-403 K. For DMA2MnBr4, the incorporation of Mg2+ ions not only leads to the enhancement of PLQY but also reduction of melting temperature. The theoretical calculation indicates that the decrease in the melting point is caused by the reduction in lattice energy. Utilizing this characteristic, we produced rewritable paper with excellent reusability. Finally, anti-counterfeiting labels were created using both DMAMn0.8Zn0.2Br3 and DMA2Mn0.95Mg0.05Br4. The concealed information can be deciphered through straightforward heating. These results hold promise for extending the potential applications of manganese-based perovskite materials.