Formation of transparent and ohmic ZnO:Al/MoSe2 contacts for bifacial Cu(In,Ga)Se2 solar cells and tandem structures

被引:78
作者
Rostan, PJ [1 ]
Mattheis, J [1 ]
Bilger, G [1 ]
Rau, U [1 ]
Werner, JH [1 ]
机构
[1] Univ Stuttgart, Inst Phys Elect, D-70569 Stuttgart, Germany
关键词
ZnO : AI/MoSe2; Cu(In; Ga)Se-2; solar cells;
D O I
10.1016/j.tsf.2004.11.001
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Cu(In,Ga)Se-2 layers are fabricated by thermal coevaporation on transparent ZnO:Al films. A thin opaque Mo interlayer inserted between the ZnO:Al and the Cu(In,Ga)Se-2 film transforms the rectifying ZnO:Al/CIGS interface into an ohmic contact. Transparency of the ZnO:Al/Mo backcontact is achieved by depositing an additional NaF precursor, which catalyses the redox selenisation of the opaque Mo to transparent MoSe2 during the Cu(In,Ga)Se-2 evaporation process. Cu(In,Ga)Se-2 solar cells with efficiencies up to 13.4% are fabricated on transparent ZnO:Al/MoSe2 backcontacts. (c) 2004 Published by Elsevier B.V.
引用
收藏
页码:67 / 70
页数:4
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