Structural characterizations of As-Se-Te glasses

G. Delaizir, M. Dussauze, V. Nazabal, P. Lecante, M. Dollé, P. Rozier, E. I. Kamitsos, P. Jovari, B. Bureau

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24 Citations (Scopus)

Abstract

The atomic structure of chalcogenide glasses As3Se 7-xTex (0 ≤ x ≤ 3) and As2Se 3-xTex (0 ≤ x ≤ 2.5) has been investigated by different methods. Short-range order has been studied by Wide-Angle X-ray Scattering (WAXS). 77Se NMR as well as Raman and infrared measurements were also performed on the different compositions. We show that the progressive introduction of tellurium in As3Se7-xTe x or As2Se3-xTex induces breaking of Se-Se bonds and the formation of AsSe3-xTex pyramidal units. Experimental data also reveal the absence of Te-Te bonds even in the tellurium richest composition which let suppose a homogeneous repartition of tellurium atoms in the glassy network.

Original languageEnglish
Pages (from-to)831-836
Number of pages6
JournalJournal of Alloys and Compounds
Volume509
Issue number3
DOIs
Publication statusPublished - Jan 21 2011

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Keywords

  • Chalcogenide glass
  • NMR
  • Raman
  • Structure
  • WAXS

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Delaizir, G., Dussauze, M., Nazabal, V., Lecante, P., Dollé, M., Rozier, P., Kamitsos, E. I., Jovari, P., & Bureau, B. (2011). Structural characterizations of As-Se-Te glasses. Journal of Alloys and Compounds, 509(3), 831-836. https://doi.org/10.1016/j.jallcom.2010.09.104