THE ADSORPTION AND DESORPTION OF OXYGEN ONCdZnTe(111)B-(2 × 2) SURFACE

Xuxu Bai, Wanqi Jie, Gangqiang Zha, Wenhua Zhang, Junfa Zhu, Dong Qian and Jinfeng Jia
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Xuxu Bai: Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, P. R. China;
Wanqi Jie: State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
Gangqiang Zha: State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
Wenhua Zhang: National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
Junfa Zhu: National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
Dong Qian: Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
Jinfeng Jia: Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, P. R. China

Surface Review and Letters (SRL), 2013, vol. 20, issue 03n04, 1-5

Abstract: The oxygen adsorption and desorption on theCdZnTe(111)B-(2×2) surface were studied with synchrotron radiation ultraviolet photoemission spectroscopy (SRUPS) and X-ray photoelectron spectroscopy (XPS). The results show that a surface state of cleanCdZnTe(111)B-(2×2) surface appears at 0.5 eV below Fermi level(EF), which disappears after the oxygen exposure, and shows again after annealing in UHV. The surface work function ofCdZnTe(111)B-(2×2) decreases after the oxygen exposure, and futher reduces after annealing.

Keywords: SRUPS; XPS; CdZnTe(111)B; surface work function (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1142/S0218625X13200011

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