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Proceedings Paper

Properties of vacuum-evaporated CdS and CdSe double-layer-films doping with copper and chlorine
Author(s): Peifu Gu; Haifeng Li; Zhenchai Zhu; Jinfa Tang
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Paper Abstract

The effect of doping with copper and chlorine on various properties of vacuum-evaporated CdS and CdSe double layers has been studied. The properties specifically studied were: (1) the dark conductivity and photoconductivity as functions of the doping concentration and the ratio of copper to chlorine, (2) the response time of various photoconductive films and (3) the optical absorption and spectral response. It was found that the dark conductivity decreases and the photoconductivity increases significantly if the ratio of Cu to Cl is suitable. The response time was about 5 - 10 ms for doping films and more than 100 ms for undoping ones. The optical absorption increases and the spectral response moves to a longer wavelength as the concentration of CdSe increases. The response wavelength can be changed by adjusting the thickness ratio of CdS to CdSe.

Paper Details

Date Published: 22 October 1993
PDF: 8 pages
Proc. SPIE 2017, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII, (22 October 1993); doi: 10.1117/12.161966
Show Author Affiliations
Peifu Gu, Zhejiang Univ. (China)
Haifeng Li, Zhejiang Univ. (China)
Zhenchai Zhu, Zhejiang Univ. (China)
Jinfa Tang, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 2017:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII
Carl M. Lampert, Editor(s)

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