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