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dc.contributor.authorBarman, P. B.-
dc.description.abstractThis paper reports the influence of bismuth (Bi) addition on the optical properties of thin films of Se85-xTe15Bix (x = 0, 1, 2, 3, 4, 5) chalcogenide glassy alloys. This has been done by analyzing the transmission spectra, measured at normal incidence, in the spectral range 400 to 1500 nm. Optical band gap (Eg) is estimated using Tauc’s extrapolation and is found to decrease from 1.46 to 1.24 eV with the Bi addition. This behavior of optical band gap is interpreted in terms of electronegativity difference of the atoms involved and cohesive energy of the system.en_US
dc.publisherJaypee University of Information Technology, Solan, H.P.en_US
dc.subjectChalcogenide glassesen_US
dc.subjectRefractive indexen_US
dc.subjectCohesive energyen_US
dc.subjectOptical band gapen_US
dc.subjectSwanepoel’s methoden_US
dc.titleEffect of Bi Addition on the Optical Band Gap of Se85te15 Chalcogenide Thin Filmsen_US
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