Sanjib Bhattacharya
University of North Bengal, India
Title: A Broad Aspect of Glass-Nanocomposites: Journey from Ionic Conductors to Chalcogenide Glassy Alloys
Biography
Biography: Sanjib Bhattacharya
Abstract
Physical properties like density and molar volume of some as-prepared glass-nanocomposites (Ionic System) provide an insight into the atomic arrangements. The variation of density with the compositions may cause gradual change of non-bridging oxygen which is consistent with the infrared spectroscopic results. Impurity or transition metal ions doped chalcogenide glassy system showed that the electrical conduction mechanism predominated by hoping of small polarons. To explore the conduction mechanism in chalcogenide semiconductors, the study of frequency dependent electrical conductivity is very much essential not only for practical applications but also for academic interest. A complete description on electrical transport phenomenon and dielectric relaxation of such glassy system is still pending till date because lack of their micro-structural information and approximation in data analysis. The AC conductivity and dielectric behaviour of them have been studied. X-ray diffraction (XRD) has been used as probe to reveal microstructure of them. The motivation of the present communication is to study composition dependent electrical and dielectric properties of some Ionic, Semiconducting and Chalcogenide glassy system. The results may open the way to the preparation, application and investigation of significant electrical and dielectric properties of such systems.