| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5366580 | Applied Surface Science | 2009 | 4 Pages |
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) (1Â 1Â 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 (1Â 1Â 1)A surface was effectively oxidized by dosing oxygen directly. The typical surface state of the clean CZT (1Â 1Â 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
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Xuxu Bai, Wanqi Jie, Gangqiang Zha, Wenhua Zhang, Peisen Li, Hui Hua, Li Fu,