Mechanism of enhanced power conversion efficiency of Cu2ZnSn(S, Se)4 solar cell by cadmium surface diffusion doping

doi:10.1016/j.jallcom.2021.160160

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	Mechanism of enhanced power conversion efficiency of Cu2ZnSn(S, Se)4 solar cell by cadmium surface diffusion doping
	H. Luan; B. Yao; Y. Li; R. Liu; Z. Ding; Z. Zhang; H. Zhao and L. Zhang
	2021
发表期刊	Journal of Alloys and Compounds
ISSN	9258388
卷号	876
摘要	In the present work, Cd-doped Cu2ZnSn(S,Se)4 (CZTSSe) films (CZCTSSe) were prepared by selenizing precursor films, which consist of thin Cd-doped Cu2ZnSnS4 (CZTS) at top layer and a thick CZTS layer at bottom. Using the CZTSSe and CZCTSSe as absorbers, solar cells with conventional structure were fabricated. It is found that Cd diffusion doping can improve the crystal quality of CZTSSe film, decrease the charge density of depletion layer and suppress the formation of secondary phases at surface of CZTSSe. The CZCTSSe solar cells have larger short-circuit current density (Jsc), open-circuit voltage (Voc) and filling factor (FF) than the CZTSSe solar cell, and so have superior power conversion efficiency (PCE) than CZTSSe solar cells. The increased Jsc is mainly due to the enhancement in photocurrent density (JL) of CZCTSS. The increased Voc is dominantly attributed to the decrease in reverse saturation current density (J0), followed by increase in JL and lastly increase in shunt resistance. The increased FF comes mainly from the contribution of Rsh. By optimizing the Cd doping content, the PCE is improved from 3.04% of CZTSSe solar cell to 7.30% of CZCTSSe solar cell. The influence mechanism of Cd-doping on PCE was suggested by analysis of effect of Cd doping on JL, Rsh and J0. 2021
DOI	10.1016/j.jallcom.2021.160160
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收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65407
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	H. Luan,B. Yao,Y. Li,et al. Mechanism of enhanced power conversion efficiency of Cu2ZnSn(S, Se)4 solar cell by cadmium surface diffusion doping[J]. Journal of Alloys and Compounds,2021,876.
APA	H. Luan.,B. Yao.,Y. Li.,R. Liu.,Z. Ding.,...&H. Zhao and L. Zhang.(2021).Mechanism of enhanced power conversion efficiency of Cu2ZnSn(S, Se)4 solar cell by cadmium surface diffusion doping.Journal of Alloys and Compounds,876.
MLA	H. Luan,et al."Mechanism of enhanced power conversion efficiency of Cu2ZnSn(S, Se)4 solar cell by cadmium surface diffusion doping".Journal of Alloys and Compounds 876(2021).

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