Abstract:Chalcogenide glasses Ge x Sb 40−x Se 60 with composition 12, 25 and 30 at.%, synthesized from elements with 5N purity (Ge, Sb, Se) by the conventional melt-quenching method were studied. The spectrophotometer's measurements were recorded to determine the optical properties. Models based on the absorbance and absorption coefficient are used to determine the optical band-gap energy. The Urbach energy is deduced in the -Ge Sb Se x x 40 60 thin film alloys with composition x=12, 25 and 30 at.%. The electronic an… Show more
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