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Synthesis, characterization and optical properties of non-traditional tellurite–selenite glasses

Authors
Journal
Optical Materials
0925-3467
Publisher
Elsevier
Volume
36
Issue
8
Identifiers
DOI: 10.1016/j.optmat.2014.03.022
Keywords
  • Tellurite–Selenite Glasses
  • Network Formers
  • Structure
  • Charge Transfer
  • Red Colored Glasses
Disciplines
  • Chemistry

Abstract

Abstract This study continues our investigations on non-traditional tellurite–selenite amorphous materials. Two glasses containing TeO2, SeO2, MoO3 and V2O5 were obtained at high oxygen pressure (P=36MPa) using pure oxides as precursors. The real bulk chemical composition of both glasses was verified by LA-ICP-MS method. The glasses were characterized by X-ray diffraction, Scanning Electron Microscopy (SEM), Differential Thermal Analysis (DTA), UV–Vis, XPS, IR and EPR spectroscopy. According to DTA the glass transition temperature (Tg) is below 300°C. Both glasses were subjected to heat treatment (300°C – 12h) and as a result no crystallization was observed. The main building units (TeO3, TeO4, Mo2O8, and SеО3) were determined by IR and X-ray photoelectron spectroscopy and the existence of mixed bridging bonds only, which build up the amorphous network. It was established by UV–Vis that the obtained glasses are transparent above 550nm and they were red colored.

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