Efficiency enhancement of Cu(In,Ga)Se2 thin-film solar cells by a post-deposition treatment with potassium fluoride

被引：133

作者：

Laemmle, Anke ^{[1
]}

Wuerz, Roland ^{[1
]}

Powalla, Michael ^{[1
]}

机构：

[1] Zentrum Sonnenenergie & Wasserstoff Forsch Baden, D-70565 Stuttgart, Germany

来源：

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2013年 / 7卷 / 09期

关键词：

potassium; Cu(In; Ga)Se-2; solar cells; doping; efficiency; NAF;

D O I：

10.1002/pssr.201307238

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Alkali-free Cu(In,Ga)Se-2(CIGS) absorbers grown on Mo-coated alumina (Al2O3) substrates were doped with potassium (K) after CIGS growth by a potassium fluoride (KF) post-deposition treatment (PDT). The addition of K to the absorber leads to a strong increase in cell efficiency from 10.0% for the K-free cell to 14.2% for the K-doped cell, mainly driven by an increase in the open-circuit voltage V-oc and the fill factor FF, and to an increase in the net charge carrier density. Hence K doping by KF-PDT is comparable to doping with Na. (c) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：631 / 634

页数：4

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