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Advances in Condensed Matter Physics
Volume 2011 (2011), Article ID 574979, 6 pages
http://dx.doi.org/10.1155/2011/574979
Research Article

Compositional Dependence of Structural Properties of Prepared P b 𝑥 S 1 − 𝑥 Alloys and Films

1Department of Physics, College of Science, University of Baghdad, P.O. Box 47162, Jadiriya, Baghdad, Iraq
2Department of Applied Physics, College of Sciences, University of Sharjah, P.O Box 27272, Sharjah, UAE

Received 21 May 2011; Revised 15 August 2011; Accepted 22 August 2011

Academic Editor: Rosa Lukaszew

Copyright © 2011 M. F. A. Alias 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

Results of a study of P b 𝑥 S 1 − 𝑥 alloys and films with various Pb content have been reported and discussed. Films of P b 𝑥 S 1 − 𝑥 of thickness 1.5 μm have been deposited on glass substrates by flash thermal evaporation method at room temperature, under vacuum at constant deposition rate. These films were annealed under vacuum around 10−6 Torr at different temperatures up to 523 K. The composition of the elements in P b 𝑥 S 1 − 𝑥 alloys was determined by standard surfaces techniques such as atomic absorption spectroscopy (AAS) and X-ray fluorescence (XRF), and the results were found of high accuracy and in very good agreement with the theoretical values. The structure for alloys and films is determined by using X-ray diffraction. This measurement reveals that the structure is polycrystalline with cubic structure and there are strong peaks at the direction (200) and (111). The effect of heat treatment on the crystalline orientation, relative intensity, and grain size of P b 𝑥 S 1 − 𝑥 films is presented.