Ge-free chalcogenide glasses based on Ga-Sb-Se and their stabilization by iodine incorporation

Alicia Lecomte (1) , Virginie Nazabal (1) , David Le Coq (1) , Laurent Calvez (1)

1 ISCR - Institut des Sciences Chimiques de Rennes

In this paper, we report the existence of new bulk chalcogenide glasses free of germanium and transparent up to 18 μm. The investigation of the Ga-Sb-Se ternary diagram has allowed bringing out the presence of a small glassy domain mainly formed for compositions with low contents of Ga. Thermal, optical and mechanical characteristics of these glasses have been studied. In order to enhance the low stability against crystallization pure iodine was successfully added. At last, structural analysis by Raman spectroscopy was performed to point out the iodine addition effect.

Keywords: Optical materials; Optical properties; Thermal analysis; Glassy domain; Chalcogenide glass

Domains: Chemical Sciences; Material chemistry; Chemical Sciences; Inorganic chemistry

Alicia Lecomte, Virginie Nazabal, David Le Coq, Laurent Calvez. Ge-free chalcogenide glasses based on Ga-Sb-Se and their stabilization by iodine incorporation. Journal of Non-Crystalline Solids, 2018, 481, pp.543-547. ⟨10.1016/j.jnoncrysol.2017.11.046⟩. ⟨hal-01695550⟩