Investigation on vibrational and structural properties of amorphous Se 1-xSx alloys produced by mechanical alloying by Raman spectroscopy, X-ray diffraction, EXAFS and RMC simulations

K. D. MacHado, A. S. Dubiel, E. Deflon, I. M. Kostrzepa, S. F. Stolf, D. F. Sanchez, P. Jóvári

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Abstract

The local atomic order of amorphous Se1-xSx alloys, x=0.20,0.30, produced by mechanical alloying were studied by Raman scattering, X-ray diffraction, EXAFS and reverse Monte Carlo simulations of their total structure factors and EXAFS oscillations on Se K edge. The results obtained were compared to those found for other Se1-xSx, x=0,0.10 alloys, and the behavior of Raman modes, average coordination numbers and interatomic distances and bond-angle distribution functions as sulphur concentration increases were determined.

Original languageEnglish
Pages (from-to)1359-1363
Number of pages5
JournalSolid State Communications
Volume150
Issue number29-30
DOIs
Publication statusPublished - Aug 1 2010

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Keywords

  • EXAFS
  • Semiconductors
  • Synchrotron radiation
  • X-ray scattering

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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