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Proceedings Paper

Cooperative chemisorption of K and O elements on cleaved GaAs(110) surface
Author(s): Bin Ren; Zhuang Miao; Zhi-Peng Hou; Hong-Chang Cheng; Feng Shi; Gang-Cheng Jiao; Xiao-Feng Bai; Sen Niu; Long Wang; Ling-Yun Fu
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Paper Abstract

Using the projected augmented wave potential by the density functional theory based upon gradual gradient approach method and the slab model, from the calculated surface, we identify the relaxed atoms sites of GaAs(110) surface, the electronic structure of elements K and O adsorpted on binding sites of ideal GaAs(110) surface have also been calculated, especially the total energy of the adsorption system. The comparison results of calculated total energy showed: for K and O elements at highest coverage of Θ=1ML on GaAs(110) surface, they were not formed to local domain of competitive chemical adsorption, while they were formed to a compound uniformity phase of cooperative chemical adsorption. Our calculated results providing theoretical basis and reference for the application of alkali oxidation adsorpted on GaAs surface to form a negative electron affinity photocathode.

Paper Details

Date Published: 2 September 2014
PDF: 6 pages
Proc. SPIE 9284, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronics Materials and Devices for Sensing and Imaging, 92841G (2 September 2014); doi: 10.1117/12.2069815
Show Author Affiliations
Bin Ren, Science and Technology on Low-Light-Level Night Vision Lab. (China)
North Night Vision Technology Group Co., Ltd. (China)
Beijing Institute of Technology (China)
Zhuang Miao, Science and Technology on Low-Light-Level Night Vision Lab. (China)
North Night Vision Technology Group Co., Ltd. (China)
Zhi-Peng Hou, Science and Technology on Low-Light-Level Night Vision Lab. (China)
North Night Vision Technology Group Co., Ltd. (China)
Hong-Chang Cheng, Science and Technology on Low-Light-Level Night Vision Lab. (China)
North Night Vision Technology Group Co., Ltd. (China)
Feng Shi, Science and Technology on Low-Light-Level Night Vision Lab. (China)
North Night Vision Technology Group Co., Ltd. (China)
Gang-Cheng Jiao, Science and Technology on Low-Light-Level Night Vision Lab. (China)
North Night Vision Technology Group Co., Ltd. (China)
Xiao-Feng Bai, Science and Technology on Low-Light-Level Night Vision Lab. (China)
North Night Vision Technology Group Co., Ltd. (China)
Sen Niu, Science and Technology on Low-Light-Level Night Vision Lab. (China)
North Night Vision Technology Group Co., Ltd. (China)
Long Wang, Science and Technology on Low-Light-Level Night Vision Lab. (China)
North Night Vision Technology Group Co., Ltd. (China)
Ling-Yun Fu, Science and Technology on Low-Light-Level Night Vision Lab. (China)
North Night Vision Technology Group Co., Ltd. (China)


Published in SPIE Proceedings Vol. 9284:
7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronics Materials and Devices for Sensing and Imaging
Yadong Jiang; Junsheng Yu; Bernard Kippelen, Editor(s)

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