人工晶体学报, 2020, 49 (4): 561, 网络出版: 2020-06-15
室温核辐射探测器用碲锌镉晶体生长研究进展
Research Progress on CdZnTe Crystal Growth for Room Temperature Radiation Detection Applications
核辐射探测 碲锌镉晶体 布里奇曼法 移动加热器法 radiation detection CdZnTe crystal Bridgman method travelling heater method (THM)
摘要
碲锌镉(CdZnTe,CZT)晶体被认为是目前最有前途的室温半导体探测器材料之一,基于该晶体的探测器件具有能量分辨率高、体积小、便携等优点。而大面积CZT像素探测器的快速发展以及对高能、大剂量X射线探测的需求,对CZT材料的质量和尺寸提出了更高的要求。本文从CZT晶体的基本物性参数入手,探讨了大尺寸CZT晶体生长的影响因素,对两种主要的CZT生长方法——布里奇曼法和移动加热器法的研究进展进行了综述。
Abstract
CdZnTe (CZT) crystal has been considered as one of the most promising materials for room temperature semiconductor detector, with the advantages of high energy resolution, small volume and portability. With the rapid development of large-area CZT pixel detectors and the demand for high-energy and high-flux X-ray detection, higher requirements are put forward for the quality and size of CZT materials. In this paper, based from the basic physical properties of CZT crystal, the factors influencing the growth of large size CZT crystal were discussed. The research progress of two main CZT growth methods, Bridgman method and Travelling Heater method (THM) were summarized.
杨帆, 王涛, 周伯儒, 席守智, 查钢强, 介万奇. 室温核辐射探测器用碲锌镉晶体生长研究进展[J]. 人工晶体学报, 2020, 49(4): 561. YANG Fan, WANG Tao, ZHOU Boru, XI Shouzhi, ZHA Gangqiang, JIE Wanqi. Research Progress on CdZnTe Crystal Growth for Room Temperature Radiation Detection Applications[J]. Journal of Synthetic Crystals, 2020, 49(4): 561.