Influence of WSe2 buffer layer at back electrode on performance of Cu2ZnSn (S,Se)(4) solar cells

doi:10.1016/j.solener.2020.02.033

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	Influence of WSe2 buffer layer at back electrode on performance of Cu2ZnSn (S,Se)(4) solar cells
	X. H. Zhang,B. Yao,Y. F. Li,Z. H. Ding,H. F. Zhao,L. G. Zhang and Z. Z. Zhang
	2020
发表期刊	Solar Energy
ISSN	0038-092X
卷号	199 页码:128-135
摘要	CZTSSe-based solar cells with a structure of Al/ITO/ZnO/CdS/CZTSSe/p-WSe2/Mo (denoted as WSe2-CZTSSe solar cell) were prepared on the Mo-coated soda-lime glass (SLG) with a pre-sputtering metal tungsten (W) layer. Comparing with the conventional CZTSSe solar cell with a structure of Al/ITO/ZnO/CdS/CZTSSe/n-MoSe2/Mo (denoted as CZTSSe solar cell), the WSe2-CZTSSe solar cell shows a significant improvement in open-circuit voltage (V-OC), short-circuit current density (J(SC)) and fill factor (FF), and so its power conversion efficiency (PCE) enhances. The largest enhancement of the PCE is from 4.13% of the CZTSSe solar cell to 5.45% of the WSe2-CZTSSe solar cell. The increased V-OC and J(SC) are mainly due to the enhancement of photogenerated current density (J(L)) and decrease of reversion saturation current density (J(0)), while the increased FF is ascribed to the increase of shunt resistance (R-Sh). The influence mechanism of the WSe2 buffer layer on J(L), J(0) and R-Sh is also investigated in detail. Our results present a route of increment of PCE by reducing and even removing back contact barrier between CZTSSe and MoSe2 layers.
DOI	10.1016/j.solener.2020.02.033
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收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64612
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X. H. Zhang,B. Yao,Y. F. Li,Z. H. Ding,H. F. Zhao,L. G. Zhang and Z. Z. Zhang. Influence of WSe2 buffer layer at back electrode on performance of Cu2ZnSn (S,Se)(4) solar cells[J]. Solar Energy,2020,199:128-135.
APA	X. H. Zhang,B. Yao,Y. F. Li,Z. H. Ding,H. F. Zhao,L. G. Zhang and Z. Z. Zhang.(2020).Influence of WSe2 buffer layer at back electrode on performance of Cu2ZnSn (S,Se)(4) solar cells.Solar Energy,199,128-135.
MLA	X. H. Zhang,B. Yao,Y. F. Li,Z. H. Ding,H. F. Zhao,L. G. Zhang and Z. Z. Zhang."Influence of WSe2 buffer layer at back electrode on performance of Cu2ZnSn (S,Se)(4) solar cells".Solar Energy 199(2020):128-135.

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