Effect of Ge-addition on physical and optical properties of chalcogenide Pb10Se90-xGex bulk glasses and thin films

摘要: Abstract Several substantial physical and optical properties of non-crystalline Pb10Se90-xGex bulk glasses thin-films (0.0 ≤ x ≤ 10 at.%) have been studied. Bulk film samples were synthesized via melt-quench thermal-evaporation processes, respectively. The films fabricated on pre-cleaned glass substrates under vacuum ≈5 × 10−4 Pa. non-crystallinity studied has investigated by X-ray diffractograms. A good-matching between selected compositional elements those measured experimentally was confirmed energy-dispersive analysis. absorption nature in detail, where absorbance, coefficient, skin depth effect discussed. indirect transition bandgap energy its value decreases as Ge-content increases. Cohesive energy, average coordinate number, atomization heat, lone-pair electrons, mean-bond others Based density values, many parameters estimated studied, like compactness, packing density, atomic densities, polaron radius, field strength. All characterizations are strongly dependent upon Ge-percentages.