Investigation of thermal properties of Sulfosalt SnSb2S4 thin films by the Photothermal Deflection Technique

Abstract

The thermo-physical properties of sulfosalt SnSb2S4 thin films deposited at two different glass substrate temperatures by Thermal Evaporation were investigated using the Photothermal Deflection method in its uniform heating case instead of traditionally a non uniform heating one. The advantage of applying this method in this way lies in its simplicity and its sensitivity to both thermal conductivity and thermal diffusivity. These films undergo abrupt changes in thermal properties on both sides of the transition temperature of 140°C which may be show the influence of the substrate temperature on thermal properties of the material.