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碲锌镉单晶体的(110)面蚀坑形貌观察
引用本文:高德友,赵北君,朱世富,王瑞林,魏昭荣,李含冬,韦永林,唐世红.碲锌镉单晶体的(110)面蚀坑形貌观察[J].人工晶体学报,2004,33(2):180-183.
作者姓名:高德友  赵北君  朱世富  王瑞林  魏昭荣  李含冬  韦永林  唐世红
作者单位:四川大学材料科学系,成都,610064
基金项目:国家自然科学基金(60276030)和教育部博士点基金资助项目;四川省科技攻关重点项目(02GG009-010)
摘    要:本文报道了一种能够在室温下择优腐蚀碲锌镉(CZT)单晶体(110)晶面的腐蚀液配方,并对富Cd生长的CZT晶体蚀坑形貌进行了扫描电镜观察.结果表明晶体(110)面腐蚀坑形状为三角形,并初步对蚀坑的成因进行了分析,估算出CZT(110)面蚀坑密度约为103~105/cm2数量级.这说明富Cd原料的改进布里奇曼法可以生长出低蚀坑密度的CZT单晶体.

关 键 词:碲锌镉  单晶体  蚀坑观察  SEM形貌  
文章编号:1000-985X(2004)02-0180-04

Observation on Etch Pits on the (110) Faces of Cd1-xZnxTe Crystals
GAO De-you,ZHAO Bei-jun,ZHU Shi-fu,WANG Rui-lin,WEI Zhao-rong,LI Han-dong,WEI Yong-lin,TANG Shi-hong.Observation on Etch Pits on the (110) Faces of Cd1-xZnxTe Crystals[J].Journal of Synthetic Crystals,2004,33(2):180-183.
Authors:GAO De-you  ZHAO Bei-jun  ZHU Shi-fu  WANG Rui-lin  WEI Zhao-rong  LI Han-dong  WEI Yong-lin  TANG Shi-hong
Abstract:This paper reported a new etch-pits etchant, which is able to selectively etch (110) faces of Cd_(1-x)Zn_xTe (CZT) crystals. Here it was used to etch (110) faces of the Cd-riched CZT crystal. The results show that the shape of etch pits appears as triangle on the (110) face of the crystal by SEM observation. The formation reasons for the triangle etch pits were analyzed preliminarily.It is estimated that the etch pits density (EPD) on the (110) faces of the CZT crystals is at the order of 10~3-10~5/cm~2 magnitude. It is demonstrated that the Cd-riched starting materials can grow low EPD CZT single crystals by modified Bridgman method.
Keywords:CdZnTe  single crystals  etch pits observation  SEM morphology
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