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Chemically deposited antimony selenide thin films

Published online by Cambridge University Press:  01 February 2011

Y. Rodríguez-Lazcano ,
Y. Peña ,
M.T. S. Nair  and
P. K. Nair
Y. Rodríguez-Lazcano
Affiliation:
Centro de Investigación en Energía, Universidad Nacional Autónoma de México Temixco, Morelos 62580, MÉXICO. mtsn@cie.unam.mx
Y. Peña
Affiliation:
Centro de Investigación en Energía, Universidad Nacional Autónoma de México Temixco, Morelos 62580, MÉXICO. mtsn@cie.unam.mx
M.T. S. Nair
Affiliation:
Centro de Investigación en Energía, Universidad Nacional Autónoma de México Temixco, Morelos 62580, MÉXICO. mtsn@cie.unam.mx
P. K. Nair
Affiliation:
Centro de Investigación en Energía, Universidad Nacional Autónoma de México Temixco, Morelos 62580, MÉXICO. mtsn@cie.unam.mx
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Abstract

Chemical bath deposition of thin films of antimony selenide from aqueous solutions containing complexes of antimony with citrate, tartrate and thiosulfate as ligands and sodium selenosulfate as source of selenide is reported. The films obtained appear amorphous in the as-prepared form and become crystalline upon annealing at 300°C. The X-ray Diffraction (XRD) patterns of the annealed films show peaks attributable to Sb2Se3 and Sb2O3. Electron microprobe analyses have shown that the atomic ratio of Se/Sb is less than 1.5 in these films. The films are photoconductive and exhibit a high resistivity in the dark. Both direct (1.4 eV) and indirect (1.3-1.5 eV) band gaps are observed for the films.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 730: Symposium V – Materials for Energy Storage, Generation, and Transport , 2002 , V5.11
Copyright
Copyright © Materials Research Society 2002

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