Effect of back-contact barrier on thin-film CdTe solar cells

被引：207

作者：

Demtsu, S. H. ^{[1
]}

Sites, J. R. ^{[1
]}

机构：

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

来源：

THIN SOLID FILMS | 2006年 / 510卷 / 1-2期

关键词：

cadmium telluride; schottky barrier; solar cells; contacts; electrical properties; measurements;

D O I：

10.1016/j.tsf.2006.01.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The presence of a back-contact barrier affects the current-voltage characteristics of thin-film CdS/CdTe/metal solar cells primarily by impeding hole transport, a current-limiting effect commonly referred to as "rollover." In this work, the CdS/CdTe solar cell with a CdTe/metal back-contact barrier is modeled by two opposite polarity diodes in series. Analytic simulations are fitted to the measured current-voltage curve, the voltage distribution between the two diodes is shown under different conditions, and the back-contact barrier height is extracted. Room-temperature barrier heights exceeding 0.5 eV will generally result in significant fill-factor reduction. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：320 / 324

页数：5

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