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

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, Se₉₀In₁₀ and Se₉₀Zn₁₀ 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.