Physicochemical and Optical Properties of Glasses
in the Ga₄Ge₂₁Se₅₀Sb₂Se₃ System

A. S. Tverjanovich* and E. V. Tereshchenko

Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, Petrodvorets, St. Petersburg, 198504 Russia

*e-mail: andr.tver@yahoo.com

Received December 10, 2009

Abstract—This paper reports on the results of an investigation into the concentration behavior of the glass-
forming ability, heat resistance, glass transition temperature, density, refractive index, transparent spectral
region, and impurity optical absorption of glasses in the Ga₄Ge₂₁Se₅₀–Sb₂Se₃ system. The data obtained indi-
cate that glasses in the Ga₄Ge₂₁Se₅₀–Sb₂Se₃ system with a high Sb₂Se₃ content are of interest as materials for
use in fiber optics.

Key words: chalcogenide glasses, optical fibers

DOI: 10.1134/S1087659610030065

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