Analysis of composition dependence of some thermal transport properties in glassy Se80−xTe20Snx (0 ⩽ x ⩽ 10) alloys using transient plane source measurements

► Thermo-physical properties are determined using advanced TPS measurements. ► Thermo-physical properties are highly composition dependent. ► Composition dependence of thermo-physical properties shows local extrema. ► The Philips-Thorpe model successfully explains the observed results.