Glass formation and properties of novel GeS 2–Sb 2S 3–In 2S 3 chalcogenide glasses

Abstract

Novel chalcogenide glasses based on GeS 2–In 2S 3–Sb 2S 3 system were prepared by conventional melt-quenching method and their physicochemical properties, e.g. glass transition temperature, density, and Vickers micro-hardness, were studied in detail. The results show that the thermal, mechanical, and optical properties depend largely on four-coordinated Ge or In entities and are sensitive to the variation of the connectivity in the GeS 2–In 2S 3–Sb 2S 3 glass network. It is a promising chalcogenide glass system suitable for rare earth doping or crystallization of rare earth doped crystals, which aims at optical applications of IR optical amplifier or efficient solid state laser.