基于材料调控的直接转换型铅卤钙钛矿X射线探测器研究进展  

Research Progress of Direct Perovskite X-ray Detector Based on Material Regulation

作　　者：胡刚舰 陈琦 魏薇 孙仔成 姚梦楠 沈亮[1] HU Gangjian;CHEN Qi;WEI Wei;SUN Zaicheng;YAO Mengnan;SHEN Liang(College of Electronic Science and Engineering,Jilin University,Changchun 130021,China;School of Microelectronics,Shenzhen College of Information Technology,Shenzhen 518172,China)

机构地区：[1]吉林大学电子科学与工程学院,吉林长春130021 [2]深圳信息职业技术学院微电子学院,广东深圳518172

出　　处：《发光学报》2023年第5期771-785,共15页Chinese Journal of Luminescence

基　　金：国家自然科学基金面上项目(61875072)。

摘　　要：X射线探测在诸如医学成像、特定晶体结构测定、射电天文学等领域有着非常重要的作用。而传统的用于X射线探测领域的材料如硅、锑化镉等存在制备工艺复杂、成本高、X射线探测灵敏度低等缺点,严重制约了X射线探测领域的发展。近年来,铅卤钙钛矿材料作为备受关注的热点材料,因其具备较大的原子序数、高吸收系数等优点,在X射线探测领域表现出非常优异的性能。而钙钛矿材料体系是一个大家族,不同组分的钙钛矿材料各有其优缺点,即使是同一组分的钙钛矿,根据其结晶性等参数的不同,性能表现也各不相同。本文从钙钛矿材料调控的角度出发,综述了近些年来直接转换型钙钛矿X射线探测器取得的成就,并对未来钙钛矿X射线探测领域的发展趋势做出了展望。X-ray detection plays an essential role in areas such as medical imaging,determination of specific crys-tal structures,and radio astronomy.However,traditional materials used in the field of X-ray detection,such as sili-con and cadmium antimonide,suffer from complex fabrication processes,excessive cost and low sensitivity to X-rays,which severely limit the development of the field.As a hot topic in recent years,lead halide perovskites have shown excellent performance in the field of X-ray detection due to their large atomic numbers and elevated absorption coefficients.While the perovskite material system is a huge family,different components of perovskite materials have their advantages and disadvantages,and even the same component of perovskite material can have different proper-ties depending on different parameters such as crystallization.In this paper,we review recent achievements in direct-conversion perovskite X-ray detectors from the perspective of perovskite material regulation and provide an outlook on future developments in perovskite X-ray detection.

关 键 词：铅卤钙钛矿 材料调控 直接转换型 X射线探测 

分 类 号：TL816.1[核科学技术—核技术及应用]