Effect of window layer composition in Cd1-xZnxS/CdTe solar cells

被引：65
|
作者：
Kartopu, Giray [1 ]
Clayton, Andrew J. [1 ]
Brooks, William S. M. [1 ]
Hodgson, Simon D. [1 ]
Barrioz, Vincent [1 ]
Maertens, Alban [1 ]
Lamb, Dan A. [1 ]
Irvine, Stuart J. C. [1 ]
机构：
[1] Glyndwr Univ, Optic Glyndwr, CSER, St Asaph LL17 0JD, Wales
来源：
PROGRESS IN PHOTOVOLTAICS | 2014年 / 22卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
CdTe thin-film solar sells; window layer composition; blue response; THIN-FILM; SEMICONDUCTOR; GROWTH; MOCVD;
D O I：
10.1002/pip.2272
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
To improve CdS/CdTe cell/module efficiencies, CdS window layer thinning is commonly applied despite the risk of increased pin-hole defects and shunting. An alternative approach is to widen the band gap of the window layer (2.42eV for CdS) via alloying, for example, by forming compositions of Cd1-xZnxS. In this study, the performance of Cd1-xZnxS/CdTe thin-film solar cells has been studied as a function of x (from x=0 to 0.9), widening the window layer band gap up to and over 3.4eV. Optimum Cd1-xZnxS compositions were clearly identified to be around x=0.7, and limitations to the achievable photocurrent and conversion efficiencies have been addressed. Copyright (c) 2012 John Wiley & Sons, Ltd.
引用
收藏
页码：18 / 23
页数：6
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