TITLE:
DC Electrical Conductivity Studies of GeO2 Doped Lead Vanadate Glass System
AUTHORS:
P. Tejeswararao, D. L. Sastry
KEYWORDS:
XRD, DSC, DC Conductivity, Semiconducting Glasses
JOURNAL NAME:
New Journal of Glass and Ceramics,
Vol.7 No.3,
July
3,
2017
ABSTRACT: Temperature dependent DC electrical conductivity
studies of GeO2 substituted lead vanadate glass systems xGeO2(50-x)PbO:50V2O5 (x = 5, 10, 15 mole%) were carried out and the results are reported. X-ray
diffraction results reveal that all samples are perfect amorphous in nature.
DSC results indicate that the substituent GeO2 is replacing PbO in
the glass network in such a way that the eutectic composition is maintained. DC
electrical conductivity studies of the glass samples indicate that the systems
are characterized by different activation energies in different temperature ranges
which in turn depend on the annealing temperature. These results are
interpreted in terms of temperature dependent microstructural changes in these
glass systems.