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Characterization of CDTE Films, Useful In All Thin-Films Solar Cells. I. CD Vacancies And Photoluminescence Spectra

Published online by Cambridge University Press:  26 February 2011

J. M. Figueroa ,
C. Vazquez-Lopez ,
F. Sanchez-Sinencio ,
J. G. Mendoza-Alvarez  and
O. Zelaya
J. M. Figueroa
Affiliation:
Departamento de Fisica. Centro de Investigacin del IPN. Apartado Postal 14–740. 07000 Mexico D.F. MEXICO. Escuela Superior de Fisica y Matematicas del IPN. Apartado Postal 75–702. 07738 Mexico D.F. MEXICO.
C. Vazquez-Lopez
Affiliation:
Instituto de Ciencias. Universidad Autonoma de Puebla. 72570 Puebla, Pue. MEXICO.
F. Sanchez-Sinencio
Affiliation:
Departamento de Fisica. Centro de Investigacin del IPN. Apartado Postal 14–740. 07000 Mexico D.F. MEXICO.
J. G. Mendoza-Alvarez
Affiliation:
Departamento de Fisica. Centro de Investigacin del IPN. Apartado Postal 14–740. 07000 Mexico D.F. MEXICO. Instituto de Ciencias. Universidad Autonoma de Puebla. 72570 Puebla, Pue. MEXICO.
O. Zelaya
Affiliation:
Departamento de Fisica. Centro de Investigacin del IPN. Apartado Postal 14–740. 07000 Mexico D.F. MEXICO.
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Abstract

Polycrystalline CdTe films were grown by a hot-wall-close space vapor transport technique. In-doped CdTe films were grown onto conductive tin-oxide glass substrates. In order to produce Cd-vacancies, the films were photocorroded using the electrochemical arrangement reported by C. Vazquez-Lopez et al [4]. CdTe films were photocorroted during different times of illumination. Photoluminescence spectra of these films showed that the peak at 1.55eV grows with the photocorrosion time. Our results indicate that the 1.55 peak is associated to Cd-vacancies which are produced during the photo-corrosion process.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 54: Symposium E – Thin Films–Interfaces and Phenomena , 1985 , 379
Copyright
Copyright © Materials Research Society 1986

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References

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