Silver environment and covalent network rearrangement in GeS3-Ag glasses

L. Rátkai, I. Kaban, T. Wágner, J. Kolář, S. Valková, Iva Voleská, B. Beuneu, P. Jóvári

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The structure of Ag-doped GeS3 glasses (0, 15, 20, 25 at.% Ag) was investigated by diffraction techniques and extended x-ray absorption fine structure measurements. Structural models were obtained by fitting the experimental datasets simultaneously by the reverse Monte Carlo simulation technique. It is observed that Ge has mostly S neighbours in GeS3, but Ge-Ge bonds appear already at 15% Ag content. Sulfur has ∼2 S/Ge neighbours over the whole concentration range, while the S-Ag coordination number increases with increasing Ag content. Ag-Ag pairs can already be found at 15% Ag. The Ag-S mean coordination number changes from 2.17 ± 0.2 to 2.86 ± 0.2 between 15% and 25% Ag content. Unlike the As-S network in AsS2-25Ag glass, the Ge-S network is not fragmented upon Ag-doping of GeS3 glass.

Original languageEnglish
Article number454210
JournalJournal of Physics Condensed Matter
Volume25
Issue number45
DOIs
Publication statusPublished - Nov 13 2013

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Silver
silver
coordination number
Glass
glass
x ray absorption
Sulfur
sulfur
Diffraction
fine structure
Doping (additives)
X rays
diffraction
simulation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)

Cite this

Silver environment and covalent network rearrangement in GeS3-Ag glasses. / Rátkai, L.; Kaban, I.; Wágner, T.; Kolář, J.; Valková, S.; Voleská, Iva; Beuneu, B.; Jóvári, P.

In: Journal of Physics Condensed Matter, Vol. 25, No. 45, 454210, 13.11.2013.

Research output: Contribution to journalArticle

Rátkai, L, Kaban, I, Wágner, T, Kolář, J, Valková, S, Voleská, I, Beuneu, B & Jóvári, P 2013, 'Silver environment and covalent network rearrangement in GeS3-Ag glasses', Journal of Physics Condensed Matter, vol. 25, no. 45, 454210. https://doi.org/10.1088/0953-8984/25/45/454210
Rátkai L, Kaban I, Wágner T, Kolář J, Valková S, Voleská I et al. Silver environment and covalent network rearrangement in GeS3-Ag glasses. Journal of Physics Condensed Matter. 2013 Nov 13;25(45). 454210. https://doi.org/10.1088/0953-8984/25/45/454210
Rátkai, L. ; Kaban, I. ; Wágner, T. ; Kolář, J. ; Valková, S. ; Voleská, Iva ; Beuneu, B. ; Jóvári, P. / Silver environment and covalent network rearrangement in GeS3-Ag glasses. In: Journal of Physics Condensed Matter. 2013 ; Vol. 25, No. 45.
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