Characterization of CdZnTe crystal grown by bottom-seeded Bridgman and Bridgman accelerated crucible rotation techniques

摘要：

The growth of CdZnTe crystals with diameter up to 60 mm using bottom-seeded Bridgman method as well as Bridgman accelerated crucible rotation technique (ACRT-B) was investigated. Both ingots exhibit high yields, where single crystal with the volume exceeding 200 cm3 is produced. The crystal properties of two ingots were compared in the aspects of yields, crystalline quality and composition uniformity. For CdZnTe ingot grown by bottom-seeded Bridgman method, the full width at half-maximum (FWHM) of X-ray rocking curve was determined to be 36, indicating a better crystalline quality than ingot grown by ACRT-B method, which gave FWHM of 56. The composition distribution of Zn and In in CdZnTe was determined by using electron probe microanalysis (EPMA) and inductively coupled plasma mass spectrometry (ICPMS), respectively. The effective segregation coefficients of Zn kZn and In kIn in the two ingots were evaluated by fitting the experimental data with the Pfann equation.

关键词： seed crystals cadmium compounds accelerated crucible rotation technique Bridgman technique

作者: WANG Tao JIE Wan-qi XU Ya-dong ZHA Gang-qiang FU Li

作者单位: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xian 710072, China

会议类型: 国际会议

会议名称: 2009 Frontier Symposium of China Postductors on Materrials Science(2009年中国博士后材料科学前言论坛)

会议地点: 长沙

会议语种:英文

页码: 622-625

在线出版日期: 2009-11-22（万方平台首次上网日期，不代表论文的发表时间）