Two‑Dimensional Metal Halides for X‑Ray Detection Applications

作     者：Yumin Li Yutian Lei Haoxu Wang Zhiwen Jin Yumin Li;Yutian Lei;Haoxu Wang;Zhiwen Jin

作者机构：School of Physical Science and Technology and Lanzhou Center for Theoretical Physics and Key Laboratory of Theoretical Physics of Gansu ProvinceLanzhou UniversityLanzhou 730000People’s Republic of China 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2023年第15卷第8期

页      面：405-422页

核心收录：

学科分类：082704[工学-辐射防护及环境保护] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0827[工学-核科学与技术] 0703[理学-化学] 0702[理学-物理学] 

基　　金：This work was funded by the National Natural Science Foundation of China(22279049 and 12247101) the Fundamental Research Funds for the Central Universities(lzujbky-2021-it31,lzujbky-2021-ct15 and lzujbky-2021-sp69) the calculation work was supported by Supercomputing Center of Lanzhou University the Gansu Province Outstanding Doctoral Student Program(22JR5RA435). 

主　　题：Two-dimensional perovskite High stability Ion migration Charge transport X-ray Detector 

摘      要：Metal halide perovskites have recently emerged as promising candidates for the next generation of X-ray detectors due to their excellent optoelectronic properties.Especially,two-dimensional(2D)perovskites afford many distinct properties,including remarkable structural diversity,high generation energy,and balanced large exciton binding energy.With the advantages of 2D materials and perovskites,it successfully reduces the decomposition and phase transition of perovskite and effectively suppresses ion migration.Meanwhile,the existence of a high hydrophobic spacer can block water molecules,thus making 2D perovskite obtain excellent stability.All of these advantages have attracted much attention in the field of X-ray detection.This review introduces the classification of 2D halide perovskites,summarizes the synthesis technology and performance characteristics of 2D perovskite X-ray direct detector,and briefly discusses the application of 2D perovskite in scintillators.Finally,this review also emphasizes the key challenges faced by 2D perovskite X-ray detectors in practical application and presents our views on its future development.