Effect of in and Zn additives on some thermal properties of a-Se

Abstract

In the present work, the effect of In and Zn on some thermo–physical properties (thermal conductivity, diffusivity and specific heat per unit volume) of amorphous Se (a-Se) have been studied. For this, simultaneous measurements of effective thermal conductivity ( λ e) and effective thermal diffusivity ( χ e) are used at room temperature for twin pellets of Se, Se 90In 10 and Se 90Zn 10 alloys using transient plane source (TPS) technique. It has been found that In and Zn additives changes significantly the values of thermo-physical properties (thermal conductivity, diffusivity and specific heat per unit volume) of a-Se studied in the present work. The results have been analyzed in terms of average bond strength and effective molecular weight of the binary alloys.