Peng Jiali, Xu Yalun, Yao Fang, Lin Qianqian
Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, P. R. China.
Nanoscale. 2022 Jul 14;14(27):9636-9647. doi: 10.1039/d2nr01643e.
Metal halide perovskites have attracted increasing attention due to their strong stopping power, defect tolerance, large mobility lifetime product, tunable bandgap and simple single-crystal growth low-cost solution processes, particularly for ionizing radiation detection. Over the past few years, semiconductor-type X-ray detectors based on a variety of perovskites have been developed, showing impressive progress in achieving high sensitivity and low detection limits. In this study, based on the requirement of material properties for high-performance X-ray detectors, we review various materials used for direct detection and summarize the processing techniques and optoelectronic considerations of thick-junction perovskite X-ray detectors. This review also highlights the key challenges facing perovskite X-ray detectors towards real applications and discusses the opportunities, which are promising to explore and may require more research activities.
金属卤化物钙钛矿因其强大的阻止本领、缺陷容忍度、大的迁移率寿命乘积、可调节带隙以及简单的单晶生长低成本溶液法，特别是在电离辐射探测方面，受到了越来越多的关注。在过去几年中，基于各种钙钛矿的半导体型X射线探测器得到了发展，在实现高灵敏度和低检测限方面取得了令人瞩目的进展。在本研究中，基于高性能X射线探测器的材料性能要求，我们综述了用于直接探测的各种材料，并总结了厚结钙钛矿X射线探测器的加工技术和光电考量。本综述还强调了钙钛矿X射线探测器在实际应用中面临的关键挑战，并讨论了有望探索且可能需要更多研究活动的机遇。
