Title

Preparation and characterization of CuIn1-xGaxSe2-ySy thin film solar cells by rapid thermal processing

Authors

Authors

S. S. Kulkarni; G. T. Koishiyev; H. Moutinho;N. G. Dhere

Abstract

This paper describes the synthesis and characterization of CuIn1-xGaxSe2-ySy (CIGSeS) thin-film solar cells prepared by rapid thermal processing (RTP). An efficiency of 12.78% has been achieved on similar to 2 mu m thick absorber. Materials characterization of these films was done by SEM, EDS, XRD, and AES. J-V curves were obtained at different temperatures. It was found that the open circuit voltage increases as temperature decreases while the short circuit current stays constant. Dependence of the open circuit voltage and fill factor on temperature has been estimated. Bandgap value calculated from the intercept of the linear extrapolation was 1.1-1.2 eV. Capacitance-voltage analysis gave a carrier density of 4.0 x 10(15) cm(-3). (C) 2008 Elsevier B.V. All rights reserved.

Journal Title

Thin Solid Films

Volume

517

Issue/Number

7

Publication Date

1-1-2009

Document Type

Article

First Page

2121

Last Page

2124

WOS Identifier

WOS:000263847300005

ISSN

0040-6090

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