Synthesis Techniques and Thermal Properties of Chalcogenide Glassy Alloys

Abstract: Combining chalcogen elements usually selenium (Se), or tellurium (Te) sulfur (S), with other elements like tin (Sn), germanium (Ge), arsenic (As), indium (In) or antimony (Sb), produces chalcogenide glasses. The wide range of infrared transparency, nonlinear optical characteristics, and photonic uses of these glasses make them unique. These glasses can be prepared by using a number of techniques, including melt-quenching, vapour deposition and sol-gel but the melt-quenching approach is the most widely used. Analysis of various thermal parameters of chalcogenide glasses, including T_g (glass transition temperature) T_c (crystallization temperature), thermal stability parameter, Hruby Parameter, glass and crystallization activation energy for glassy and crystallization region, crystallization rate constant, enthalpy, etc by using DSC in non-isothermal conditions. Thermal transport properties of chalcogenide glasses (CGs) thermal conductivity, thermal diffusivity and specific heat per unit volume are also observed by using transient plane source technique (TPS).