Radiation detectors play an indispensable role in medical diagnostics, industrial non‐destructive inspection and national security. Recently, halide perovskites are considered as the new generation of radiation active materials due to excellent optoelectronic properties such as adjustable bandgap, high absorption coefficient, high carrier mobility and low cost. The radiation detectors based on perovskite show high sensitivity and low detection limit, contributing to excellent spatial resolution for imaging. However, the commercialization of perovskite radiation detectors for high quality imaging still faces many challenges, including ion migration in perovskite, fermi level pinning and electrochemical reaction at the interface of perovskite/electrode, and difficulties of integration with readout circuit. All the issues hinder the further improvement of device performance. This review summarizes the material forms and the optimized growth methods of perovskite for radiation imaging detectors. Further, this work focuses on challenges and improvements of the interface between perovskites and electrodes. Meanwhile, this work outlines the technical routes used to realize array detectors for radiation imaging. The comprehensive review would guide the commercialization of perovskite radiation detectors for high‐quality imaging.

中文翻译：

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推进基于钙钛矿的辐射探测器的商业化，用于高分辨率成像


辐射探测器在医疗诊断、工业无损检测和国家安全中发挥着不可或缺的作用。近年来，卤化物钙钛矿因其带隙可调、吸收系数高、载流子迁移率高、成本低等优异的光电性能而被认为是新一代辐射活性材料。基于钙钛矿的辐射探测器具有高灵敏度和低检测限，有助于为成像提供出色的空间分辨率。然而，用于高质量成像的钙钛矿辐射探测器的商业化仍然面临许多挑战，包括钙钛矿中的离子迁移、钙钛矿/电极界面处的费米能级固定和电化学反应，以及与读出电路集成的困难。所有问题都阻碍了设备性能的进一步改进。本文总结了钙钛矿用于辐射成像探测器的材料形态和优化生长方法。此外，这项工作的重点是钙钛矿和电极之间界面的挑战和改进。同时，这项工作概述了用于实现辐射成像阵列探测器的技术路线。全面审查将指导钙钛矿辐射探测器的商业化，以实现高质量成像。