摘要
报道用ＸＰＳ研究Ｃｄ（１－ｙ）ＺｎｙＴｅ（ｙ＝０．００；０．０４）衬底经机械抛光后（Ｐ表面）和化学抛光后（ＰＥ表面）的表面化学配比和表面结构。ＭｇＯ粉机械抛光后，表面为富Ｃｄ层，溴（２％体积比）乙醇溶液化学抛光后，表面为贫Ｃｄ层；２～４．５ｋＶＡｒ＋溅射表面，不导致元素的择优溅射，表面化学配比接近用电镜测量所得的体内组份值。ＣｄＴｅＰ表面和汗表面结构分别为Ｃｄ／Ｔｅ／／ＣｄＴｅ和Ｔｅ／／ＣｄＴｅ．置于室温空气中氧化（ＰＯ表面和ＰＥＯ表面）４个月形成的氧化物分别为Ｃｄ（ＯＨ）２和ＴｅＯ２及ＣｄＴｅＯ４和ＴｅＯｘ（Ｘ＜１），表面结构分别为Ｃｄ（ＯＨ）２／Ｔｅｑ／／ＣｄＴｅ和ＴｅＯｘ／／ＣｄＴｅＯ４／／ＣｄＴｅ（／符号表示混合物，／／符号表示界面）。
Abstract Stoichiometry and surface composition of CdZnTe crystal were analyzed with XPS.Cd rich surface after mechanical polishing with polishing with MgO powder and Cd dopleted surface with 2%Bromine ethanol chemical polishing were observed Similar results stoichiometry of the surface were obtained with XPS and SEM. The P and PE surface composition of the CdTe samples were Cd/Te
出处
《红外技术》
CSCD
1996年第5期11-14,共4页
Infrared Technology
