Amorphous chalcogenide glasses have great interesting due to their wide range of applications such as solar cells, photo detectors, photo diodes, imagining and xerography. As-Sb-Se-Te thin films were prepared by thermal evaporation method. The addition of Te content were found to affect the optical, electrical and photo electrical properties. The influence of incorporation of Te in (As-Sb-Se-Te) system results in an increase of the bulk density and molar volume while the coordination number, the average heat of atomization and cohesive energy decrease. The effect of Te content on the steady...