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dc.contributor.authorSharma, Ambika-
dc.contributor.authorBarman, P.B.-
dc.descriptionThin Solid Films 517 (2009) 3020–3023en_US
dc.description.abstractBulk samples of Se85 − xTe15Bix (where x=0, 1, 2, 3, 4, 5) glassy alloys are obtained by melt quenching technique. Differential scanning calorimetric (DSC) technique has been applied to determine the thermal properties of Se-rich Se85 − xTe15Bix glassy alloys in the glass transition and crystallization regions at four heating rates (5, 10, 15, 20 K min−1). The glass transition temperature (Tg) and peak crystallization temperature(Tp) are found to shift to a higher temperature with increasing heating rate. With Bi addition, the value of (Tg)increases. (Tp) is found to increase as Bi is introduced to the Se–Te host, however further increase in Bi concentration is responsible for the reduction of. Thin film of bulk samples are deposited on glass substrate using thermal evaporation technique under vacuum for optical characterization. Optical band gap is estimated using Tauc's extrapolation and is found to decrease from 1.46 to 1.24 eV with the Bi addition.en_US
dc.publisherJaypee University of Information Technology, Solan, H.P.en_US
dc.subjectGlass transitionen_US
dc.subjectActivation energyen_US
dc.subjectOptical band gapen_US
dc.titleCalorimetric and Optical Study of Amorphous Se85 − xTe15Bix Glassy Alloyen_US
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