Film thickness and chemical processing effects on the stability of cadmium telluride solar cells

被引：27

作者：

Albin, D. S.

Demtsu, S. H.

McMahon, T. J.

机构：

[1] Natl Renewable Energy Lab, Golden, CO 80401 USA

[2] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA

来源：

THIN SOLID FILMS | 2006年 / 515卷 / 04期

关键词：

cadmium telluride; solar cells; surface thermodynamics; X-ray diffraction;

D O I：

10.1016/j.tsf.2006.05.042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The performance and stability of CdS/CdTe solar cells as a function of layer thickness, back contact etch, and oxygen during the CdCl2 anneal was determined. Multiple linear regression models were used to analyze the statistical significance of various first order effects and interactions. With stress, all devices showed a reduction in open-circuit voltage (V-oc) and fill factor (FF) characteristic of increased recombination. Devices using thinner US were vulnerable to shunt formation. Oxygen during the CdCl2 anneal minimizes this effect. A thermodynamic model involving the formation of Cu-oxide is presented to explain the latter. (c) 2006 Elsevier B.V. All rights reserved.

引用

收藏

页码：2659 / 2668

页数：10

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