Solution-Deposited MoO3 Interface Layer for High-Performance Bifacial Kesterite Thin Film Solar Cell

被引:3
作者
Chen, Fuyan [1 ,2 ,3 ,4 ]
Liu, Bowen [1 ,2 ,3 ,4 ]
Shao, Wei [1 ,2 ,3 ,4 ]
Gao, Jiaxin [1 ,2 ,3 ,4 ]
Zhao, Chenxi [1 ,2 ,3 ,4 ]
Shen, Dongdong [1 ,2 ,3 ,4 ]
Pan, Daocheng [1 ,2 ,3 ,4 ]
Shi, Xinan [1 ,2 ,3 ,4 ]
机构
[1] Guangxi Univ, State Key Lab Featured Met Mat & Life cycle Safety, Nanning 530004, Peoples R China
[2] Guangxi Univ, Guangxi Key Lab Proc Nonferrous Met & Featured Mat, Nanning 530004, Peoples R China
[3] Guangxi Univ, MOE Key Lab New Proc Technol Nonferrous Met & Mat, Nanning 530004, Peoples R China
[4] Guangxi Univ, Sch Resources Environm & Mat, Nanning 530004, Peoples R China
基金
中国国家自然科学基金;
关键词
kesterite; bifacial solar cells; FTO; MoO3 interface layer; solution-depositedmethod; BACK-CONTACT; EFFICIENCY;
D O I
10.1021/acsaem.4c00346
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Compared with the traditional Mo back electrode of Cu2ZnSn(S,Se)(4) (CZTSSe) solar cells, the transparent and conductive electrode of fluorine-doped tin oxide (FTO) has the advantages of low lattice mismatch with the CZTSSe absorber, earth-abundant composition, transparency, and advanced applications in building integrated photovoltaics. Hence, the research of bifacial FTO/CZTSSe thin film solar cells has attracted more and more attention. However, the poor interface contact between n-type FTO/p-type CZTSSe prevents the improvement of power conversion efficiency (PCE) of CZTSSe thin film solar cells deposited on the FTO substrate. Therefore, back contact interface modification is an effective strategy to promote the performance of the FTO/CZTSSe solar cells. Here, we choose the solution-processed MoO3 as the interface layer to modify the interface of FTO/(Cu,Ag)(2)ZnSn(S,Se)(4) (CAZTSSe), and systematically investigate the effects of the thickness of MoO3 interface layer on the performance of FTO/MoO3/CAZTSSe solar cells. It is found that the optimal thickness of the solution-deposited MoO3 interface layer is 30 nm. As a result, kesterite solar cells on the FTO substrate achieve a front-side PCE of 9.49 % and a rear-side PCE of 1.04%.
引用
收藏
页码:4050 / 4056
页数:7
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