SEMI OpenIR  > 中国科学院半导体研究所(2009年前)
High-Integrated-Photosensitivity Negative-Electron-Affinity GaAs Photocathodes with Multilayer Be-Doping Structures
Zhu ZP(朱占平); Wang Xiaofeng; Zeng Yiping; Wang Baoqiang; Zhu Zhanping; Du Xiaoqing; Li Min; Chang Benkang
2005
Source Publication半导体学报
Volume26Issue:9Pages:1692-1698
AbstractThe effect of changing Be doping concentration in GaAs layer on the integrated photosensitivity for nega- tive-electron-affinity GaAs photocathodes is investigated. Two GaAs samples with the monolayer structure and the muhilayer structure are grown by molecular beam epitaxy. The former has a constant Be concentration of 1 × 10^19 cm^-3, while the latter includes four layers with Be doping concentrations of 1 × 10^19, 7 × 10^18, 4 × 10^18, and 1 × 10^18 cm^-3 from the bottom to the surface. Negative-electron-affinity GaAs photocathodes are fabricated by exciting the sample surfaces with alternating input of Cs and O in the high vacuum system. The spectral response results measured by the on-line spectral response measurement system show that the integrated photosensitivity of the photocathode with the muhilayer structure enhanced by at least 50% as compared to that of the monolayer structure. This attributes to the improvement in the crystal quality and the increase in the surface escape probability. Different stress situations are observed on GaAs samples with monolayer structure and muhilayer structure, respectively.
metadata_83中国科学院半导体研究所;institute of semiconductors, chinese academy of sciences;institute of electronic engineering
Subject Area半导体材料
Indexed ByCSCD
Language英语
CSCD IDCSCD:2205973
Date Available2010-11-23
Citation statistics
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/16787
Collection中国科学院半导体研究所(2009年前)
Recommended Citation
GB/T 7714
Zhu ZP,Wang Xiaofeng,Zeng Yiping,et al. High-Integrated-Photosensitivity Negative-Electron-Affinity GaAs Photocathodes with Multilayer Be-Doping Structures[J]. 半导体学报,2005,26(9):1692-1698.
APA 朱占平.,Wang Xiaofeng.,Zeng Yiping.,Wang Baoqiang.,Zhu Zhanping.,...&Chang Benkang.(2005).High-Integrated-Photosensitivity Negative-Electron-Affinity GaAs Photocathodes with Multilayer Be-Doping Structures.半导体学报,26(9),1692-1698.
MLA 朱占平,et al."High-Integrated-Photosensitivity Negative-Electron-Affinity GaAs Photocathodes with Multilayer Be-Doping Structures".半导体学报 26.9(2005):1692-1698.
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