THE PL SPECTROSCOPY OF CdTe POLYCRYSTALLINE THIN FILMS BY VAPOR TRANSPORT DEPOSITION

被引：0
作者：
Li, K. [1 ]
Li, C. [1 ]
Chen, G. [1 ]
Ren, S. [1 ]
Gao, W. [1 ]
Wu, L. [1 ]
Zhang, J. [1 ]
机构：
[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu, Sichuan, Peoples R China
来源：
CHALCOGENIDE LETTERS | 2018年 / 15卷 / 02期
基金：
国家高技术研究发展计划(863计划);
关键词：
Cadmium telluride; VTD; photoluminescence; solar cells; PHOTOLUMINESCENCE; OXYGEN; DEFECTS; GROWTH; CDS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
CdTe thin films on CdS coated FTO glasses were prepared by vapor transport deposition (VTD). The photoluminescence spectra excited both from CdTe film side and the glass side were investigated in order to study the effect of deposition parameters in VTD process such as substrate temperature, pressure and atmosphere on the defects in CdTe films. The results show that the substrate temperature and the atmosphere w/o oxygen have great influence on the number and variety of defects in CdTe films as well as at CdTe/CdS interface, which leads to significant difference in CdTe film properties and device performances. The effect of the pressure in this paper is identical to the effect of the substrate surface temperature. During the VTD deposition process, the real substrate temperature and the oxygen in atmosphere are the first two important parameters to control.
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收藏
页码：91 / 100
页数：10
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