移动加热器法生长CZT晶体的成分及缺陷均匀性研究  

Study on Composition and Defects Uniformity of CdZnTe Crystal Grown by Travelling Heater Method

作　　者：陈曦[1] 王涛[1] 周伯儒[1] 何杰[1] 李阳[1] 杨帆[1] 徐亚东[1] 查钢强[1] 介万奇[1] 

机构地区：[1]西北工业大学凝固技术国家重点实验室,西安710072

出　　处：《人工晶体学报》2013年第11期2215-2219,2229,共6页Journal of Synthetic Crystals

基　　金：国家自然科学基金(50902114)

摘　　要：采用移动加热器法,成功生长出尺寸为φ55 mm×70 mm的CdZnTe晶体。采用电子探针、光致发光谱等方法,测试了晶体径向的成分和缺陷分布,并与垂直布里奇曼法生长的同成分CdZnTe晶体进行了对比分析。结果表明,移动加热器法生长的CdZnTe晶体沿径向的成分和缺陷分布均匀,均优于垂直布里奇曼法生长的晶体。CdZnTe crystal with the dimensions of φ55mm×70mm was grown by travelling heater method （THM）. The composition distribution along radial direction of the crystal was measured quantitatively by EPMA. The distribution of defects along radial direction was investigated by photoluminescence （PL） spectrum. The results showed that in comparison with CdZnTe crystal grown by Bridgman method, the uniformity of both composition and defect density in the THM grown crystal improved greatly.

关 键 词：CDZNTE 移动加热器法 成分 缺陷均匀性 

分 类 号：O78[理学—晶体学]