直接型卤素钙钛矿X射线探测器结构设计研究进展  

Research Progress on Structure Design of Direct Halogen Perovskite X-ray Detectors

作　　者：韩继光 柴英俊 李晓明[1] HAN Jiguang;CHAI Yingjun;LI Xiaoming(School of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学材料科学与工程学院,江苏南京210094

出　　处：《发光学报》2024年第1期25-43,共19页Chinese Journal of Luminescence

基　　金：国家自然科学基金(62222405,U23A20359,61874054,51902160);江苏省自然科学基金(BK20220142);中央高校基本科研业务费项目(30922010713)。

摘　　要：X射线探测技术在医疗诊断、安防检测和科学研究等领域有着广泛的应用,直接型X射线探测器拥有更高的理论探测效率、空间和能量分辨率,受到了国内外的广泛关注。钙钛矿材料因其X射线衰减系数大、体电阻率高、光学带隙合适以及易大面积制造等优势,成为直接型X射线探测器的理想材料。随着对探测性能的需求的不断提高,合理的器件结构设计显得尤为重要。本文从电极工程和能带工程两个方面出发,综述了有关直接型钙钛矿X射线探测器器件结构设计的最新进展。最后,我们对这些研究进展进行了总结,并对未来的发展进行了展望。我们希望这篇综述能为研究者们提供参考和启发。X-ray detection technology has been widely used in medical diagnosis,security detection and scientific research.The direct X-ray detector has higher theoretical detection efficiency,space and energy resolution,and has been widely concerned at home and abroad.Perovskite is an ideal material for direct X-ray detectors because of its large attenuation coefficient,high bulk resistivity,suitable optical band gap and easy large area fabrication.With the increasing demand for detection performance,reasonable device structure design is particularly important.This review introduces the research progress of perovskite direct X-ray detectors from two perspectives:electrode engineer-ing and energy band engineering.Finally,we summarize the research progress and present our views on its future de-velopment.We hope this review will provide reference and inspiration for researchers.

关 键 词：钙钛矿X射线探测器 器件结构 电极工程 能带工程 异质结 

分 类 号：TL816.1[核科学技术—核技术及应用]