Coevaporated KInSe2: A Fast Alternative to KF Postdeposition Treatment in High-Efficiency Cu(In,Ga)Se2 Thin Film Solar Cells

被引：47

作者：

Lepetit, Thomas ^{[1
]}

Harel, Sylvie ^{[1
]}

Arzel, Ludovic ^{[1
]}

Ouvrard, Guy ^{[1
]}

Barreau, Nicolas ^{[1
]}

机构：

[1] CNRS UMR6502, Inst Mat Jean Rouxel, F-44322 Nantes 3, France

来源：

IEEE JOURNAL OF PHOTOVOLTAICS | 2016年 / 6卷 / 05期

关键词：

Cu(In; Ga)Se-2; (CIGS); potassium fluoride post-deposition treatment (KF-PDT); photovoltaic cells; SURFACE; XPS;

D O I：

10.1109/JPHOTOV.2016.2589365

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Cu(In,Ga)Se-2-based thin film solar cells have reached 22.3% energy conversion efficiency. This outstanding level of performance has been made possible by the use of a so-called potassium fluoride postdeposition treatment (KF-PDT) after the absorber synthesis. Such a treatment, consisting of evaporating KF under Se atmosphere, has been suggested to enhance the formation of a KInSe2 surface layer. In this paper, we propose an alternative to the standard KF-PDT, in which we simultaneously evaporate KF and In under Se atmosphere. We compare by Xray photoemission spectroscopy the modified absorber surfaces in both cases and discuss the advantages of this alternative in terms of robustness and rapidity of the process.

引用

页码：1316 / 1320

页数：5

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