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人工晶体学报 ›› 2025, Vol. 54 ›› Issue (8): 1305-1329.DOI: 10.16553/j.cnki.issn1000-985x.2025.0108

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金属卤化物钙钛矿单晶结构维度调控及其直接型X射线探测性能研究进展

代义之(), 马琳, 张文杰, 雷文瑄, 肖雯, 张俊祺, 王文誉, 张晋兴, 刘渝城()   

  1. 陕西师范大学材料科学与工程学院,西安 710119
  • 收稿日期:2025-05-22 出版日期:2025-08-20 发布日期:2025-09-01
  • 通信作者: 刘渝城,博士,教授。E-mail:liuyc@snnu.edu.cn
  • 作者简介:代义之(2005—),男,河南省人。E-mail:42435004@snnu.edu.cn
  • 基金资助:
    国家自然科学基金(52473309);国家自然科学基金(62104137);陕西省重点研发计划项目(2023-YBGY-424)

Research Progress on Structure Dimensional Regulation of Metal Halide Perovskite Single Crystal and Their Direct-Type X-Ray Detection Performance

DAI Yizhi(), MA Lin, ZHANG Wenjie, LEI Wenxuan, XIAO Wen, ZHANG Junqi, WANG Wenyu, ZHANG Jinxing, LIU Yucheng()   

  1. School of Materials Science and Engineering,Shaanxi Normal University,Xi’an 710119,China
  • Received:2025-05-22 Online:2025-08-20 Published:2025-09-01

摘要: X射线探测在医疗诊断、安防安检、工业无损探伤和环境监测等重要领域具有广泛的应用。金属卤化物钙钛矿单晶因组分多样、X射线吸收强、载流子迁移率-寿命乘积高、可低温溶液生长等优势,有望用于低成本高性能X射线探测系统开发。本文在详细介绍金属卤化物钙钛矿单晶的结构维度调控及其对X射线探测性能影响的基础上,综述了钙钛矿单晶直接型X射线探测器的最新研究进展。通过对不同结构维度钙钛矿单晶的生长方法、半导体特性、X射线探测性能的详细梳理和分析,揭示了晶体结构维度与光电探测性能之间的内在联系。在此基础上,本文还探讨了当前钙钛矿单晶X射线探测面临的挑战及未来的研究方向,将为进一步设计生长大尺寸高质量钙钛矿单晶和实现稳定高灵敏X射线探测提供理论指导和实践依据。

关键词: 金属卤化物钙钛矿; 单晶; 结构维度调控; X射线探测

Abstract: X-ray detection has a wide application in critical fields such as medical diagnostics, security screening, industrial non-destructive testing, and environmental monitoring. Metal halide perovskite single crystals have emerged as promising candidates for developing low-cost, high-performance X-ray detection systems due to their compositional tunability, strong X-ray attenuation coefficients, high carrier mobility-lifetime product, and low-temperature solution-processable growth. This review focuses on the crystal structure dimensional regulation of metal halide perovskite single crystal and their effect on X-ray detection performance,and summarizing recent advances in perovskite single crystal-based direct X-ray detectors. Through a detailed analysis of crystal growth methods, semiconductor properties, and X-ray detection performance across perovskites with various dimensionalities, this review unveils the intrinsic relationship between crystal structural dimensionality and photoelectronic detection capabilities. Based on these discussions, challenges currently faced by perovskite single crystal X-ray detectors are critically examined. Future research directions are proposed to guide the design and growth of large-size high-quality perovskite single crystals and the realization of stable, high-sensitivity X-ray detection systems. This review provides both theoretical insights and practical guidelines for advancing perovskite-based X-ray detection technologies toward practical applications.

Key words: metal halide perovskite; single crystal; structure dimensional regulation; X-ray detection

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