Improving the Back Electrode Interface Quality of Cu2ZnSn(S,Se)(4) Thin-Film Solar Cells Using a Novel CuAlO2 Buffer Layer

doi:10.1021/acsaem.8b02247

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	Improving the Back Electrode Interface Quality of Cu2ZnSn(S,Se)(4) Thin-Film Solar Cells Using a Novel CuAlO2 Buffer Layer
	Y.P.Song; B.Yao; Y.F.Li; Z.H.Ding; R.J.Liu; Y.R.Sui
	2019
发表期刊	Acs Applied Energy Materials
ISSN	2574-0962
卷号	2 期号:3 页码:2230-2237
摘要	A novel buffer layer CuAlO2 (CAO) with smooth and compact surface was applied in Cu2ZnSn(S,Se)(4)-based (CZTSSe) solar cells to optimize back electrode interface (BEI). It is found that introduction of CAO exerts a remarkable effect on the crystalline quality of absorber and the thickness of interfacial layer Mo(S,Se)(2) (MSSe) at BEI. When the thickness of CAO buffer layer was optimized to 10.6 nm, CZTSSe film exhibits preferable crystallinity with larger grains without pin holes. Also, MSSe decreases significantly to similar to 244 nm, and it is smaller than that (similar to 463 nm) of the sample without CAO. With this interface optimization, the solar cell with 10.6 nm thick CAO shows the higher shunt resistance, lower reversion saturation current density and smaller series resistance, leading to an increase in short-circuit current density (from 26.91 to 30.66 mA.cm(-2)) as well as fill factor (from 46.60% to 49.93%) compared to that of the sample without GAO. As a consequence, power conversion efficiency of the corresponding devices increases from 4.12% to 5.10%. The influence mechanism of CAO buffer layer on the photovoltaic properties of CZTSSe solar cell is discussed in detail, and this approach presents a wide range of possibilities for the further development of interface optimization in solar cells.
关键词	Cu2ZnSn(S,Se)(4) solar cell,CuAlO2 buffer layer,smooth and compact,surface,back electrode interface,crystalline quality,interface,optimization,power conversion efficiency,intermediate layer,optical-properties,solid-solutions,fabrication,contact,decomposition,efficiency,Chemistry,Energy & Fuels,Materials Science
DOI	10.1021/acsaem.8b02247
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/181722/63071
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	Y.P.Song,B.Yao,Y.F.Li,et al. Improving the Back Electrode Interface Quality of Cu2ZnSn(S,Se)(4) Thin-Film Solar Cells Using a Novel CuAlO2 Buffer Layer[J]. Acs Applied Energy Materials,2019,2(3):2230-2237.
APA	Y.P.Song,B.Yao,Y.F.Li,Z.H.Ding,R.J.Liu,&Y.R.Sui.(2019).Improving the Back Electrode Interface Quality of Cu2ZnSn(S,Se)(4) Thin-Film Solar Cells Using a Novel CuAlO2 Buffer Layer.Acs Applied Energy Materials,2(3),2230-2237.
MLA	Y.P.Song,et al."Improving the Back Electrode Interface Quality of Cu2ZnSn(S,Se)(4) Thin-Film Solar Cells Using a Novel CuAlO2 Buffer Layer".Acs Applied Energy Materials 2.3(2019):2230-2237.

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