Formation and properties of chalcogenide glasses based on GeS 2 –Sb 2 S 3 –AgI system

Novel glasses in GeS2–Sb2S3–AgI system have been prepared by melt-quenching method. A large glass-forming region was found in this novel system, in which almost 60mol% AgI has been incorporated. The basic physiochemical properties of glass samples were investigated. With the addition of AgI, redshift of short-wavelength absorption edge and distinct drop of the glass transition temperature (Tg) were observed. In addition, a high Ag+ ion conductivity of 6.37×10−4S/cm at room temperature was obtained in 55(0.6GeS2–0.4Sb2S3)–45AgI sample, indicating that these glasses have potential application as amorphous solid electrolytes.