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International Journal of Photoenergy
Volume 2013, Article ID 513217, 4 pages
http://dx.doi.org/10.1155/2013/513217
Research Article

- Calculations in CdS/CdTe Thin Films Solar Cells with a Interlayer

Escuela Superior de Física y Matemáticas-IPN, Edificio 9 U.P.A.L.M., 07738 México, DF, Mexico

Received 3 June 2013; Accepted 9 August 2013

Academic Editor: Francesco Bonaccorso

Copyright © 2013 A. Gonzalez-Cisneros et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In CdS/CdTe solar cells, chemical interdiffusion at the interface gives rise to the formation of an interlayer of the ternary compound . In this work, we evaluate the effects of this interlayer in CdS/CdTe photovoltaic cells in order to improve theoretical results describing experimental - (capacitance versus voltage) characteristics. We extended our previous theoretical methodology developed on the basis of three cardinal equations (Castillo-Alvarado et al., 2010). The present results provide a better fit to experimental data obtained from CdS/CdTe solar cells grown in our laboratory by the chemical bath deposition (for CdS film) and the close-spaced vapor transport (for CdTe film) techniques.