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Proceedings Paper

Molecular Structure Of Six Te1-X Glasses And Oxygen Alloying Effects
Author(s): P. Boolchand; B. Norban; R. Enzweiler; J. E. Griffiths; J. C. Phillips
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Paper Abstract

Raman vibrational modes, Mossbauer Electric Field Gradients and crystallization temperatures exhibit threshold behavior near the composition x=0.20 in binary SixTel_x glasses. This threshold is evidence of a morphological structural change that may be driven by average coordination number. At x.0.20, the glass structure largely consists of Ten chain segments cross-linked by Si atoms and this structure is characteristic of other IV-VI semiconductors. At x Z 0.20, Ten chains reconstruct with tetrahedral Si(Te112)4 units and nucleate a defectridden Si2Te3-like closed packed layer structure which is more metallic in character. Oxygen alloying effects in the semiconducting phase are qualitatively different from those in the metallic phase. The presence of oxygen drastically alters the kinetics of crystallization of the alloy glasses.

Paper Details

Date Published: 19 January 1988
PDF: 10 pages
Proc. SPIE 0822, Raman and Luminescence Spectroscopy in Technology, (19 January 1988); doi: 10.1117/12.941945
Show Author Affiliations
P. Boolchand, University of Cincinnati (United States)
B. Norban, University of Cincinnati (United States)
R. Enzweiler, University of Cincinnati (United States)
J. E. Griffiths, A. T. and T. Bell Laboratories (United States)
J. C. Phillips, A. T. and T. Bell Laboratories (United States)

Published in SPIE Proceedings Vol. 0822:
Raman and Luminescence Spectroscopy in Technology
Fran Adar; James E. Griffiths, Editor(s)

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