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