人工晶体学报2025，Vol.54Issue(7)：1100-1120,21.DOI:10.16553/j.cnki.issn1000-985x.2025.0016
薄膜制备方法及其结晶行为对卤化物钙钛矿X射线探测器成像性能的影响研究综述
Review on Impact of Film Preparation Method and Crystallization Behavior on the Imaging Performance of Halide Perovskite X-Ray Detectors
摘要
Abstract
X-ray detectors play a vital role in medical diagnostics,security screening,industrial nondestructive testing,and scientific research.Halide perovskites(HPs)have garnered significant attention for high-performance X-ray detection due to their large X-ray absorption coefficient,long carrier diffusion length,and superior optical properties.Notably,the flexible synthesis of HPs enables facile fabrication into polycrystalline films,wafers,and other forms.However,differences in crystallization behavior induced by fabrication methods result in varied defect distributions within the active layer,such as crystallographic orientation,grain boundaries,cracks,and pinholes,which critically impact charge carrier transport and scintillation efficiency and degrade the device performance.Therefore,elucidating crystallization mechanisms under different fabrication conditions and developing tailored control strategies are imperative.Here we systematically review the recent advances in HPs X-ray detectors:1)wet chemical synthesis approaches and crystallization regulation strategies;2)crystallization regulation in pressing methods,ion migration suppression,and scintillator wafer development;3)analyzing crystallization mechanisms in vapor deposition processes,strategies for enhancing scintillator performance,and exploratory efforts toward direct X-ray detection applications.Finally,we highlight existing challenges and future prospects for advancing HPs X-ray detectors.关键词
卤化物钙钛矿/湿化学法/压膜法/气相沉积法/结晶动力学/结晶调控/X射线成像Key words
halide perovskite/wet chemical method/pressing method/vapor deposition method/crystallization kinetics/crystallization regulation/X-ray imaging分类
数理科学引用本文复制引用
偰航,靳志文..薄膜制备方法及其结晶行为对卤化物钙钛矿X射线探测器成像性能的影响研究综述[J].人工晶体学报,2025,54(7):1100-1120,21.基金项目
国家自然科学基金(22279049) （22279049）
中央高校基本科研业务费(lzujbky-2024-ey02) （lzujbky-2024-ey02）
甘肃省自然科学基金(23JRRA1017) （23JRRA1017）
