Title of article
XPS and SRUPS study of oxygen adsorption on Cd0.9Zn0.1Te (1 1 1)A surface
Author/Authors
Xuxu Bai، نويسنده , , Wanqi Jie، نويسنده , , Gangqiang Zha، نويسنده , , Wenhua Zhang، نويسنده , , and Peisen Li، نويسنده , , Hui Hua، نويسنده , , Li Fu، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
4
From page
7966
To page
7969
Abstract
Synchrotron radiation ultraviolet photoemission spectroscopy (SRUPS) and X-ray photoelectron spectroscopy (XPS) have been applied to investigate oxygen adsorption on a cadmium zinc telluride (CZT) (1 1 1)A surface. The surface chemical composition and the surface oxidation process were monitored by recording the Te 3d, O 1s, Zn 2p, Cd 4d core level peaks, and the Cd MNN Auger peak. The CZT (1 1 1)A surface was effectively oxidized by dosing oxygen directly. The typical surface state of the clean CZT (1 1 1)A surface was identified. After oxygen exposure, this surface state disappeared and a signal due to the formation of O–CZT appeared. In addition, the work function of CZT decreased with the increasing oxygen exposure.
Keywords
Oxygen adsorption , Work function , SRUPS , XPS , CZT
Journal title
Applied Surface Science
Serial Year
2009
Journal title
Applied Surface Science
Record number
1010739
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