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DC Electrical Conductivity Studies of GeO<sub>2</sub> Doped Lead Vanadate Glass System
Department of Physics, GITAM Institute of Science and Technology, GITAM University, Visakhapatnam, India
Department of Physics, Andhra University, Visakhapatnam, India
- 1 Department of Physics, GITAM Institute of Science and Technology, GITAM University, Visakhapatnam, India
- 2 Department of Physics, Andhra University, Visakhapatnam, India
New Journal of Glass and Ceramics·Volume 07 (2017)·Pages 49–57·Published 30 June 2017·DOI10.4236/njgc.2017.73005
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Abstract
Temperature dependent DC electrical conductivity studies of GeO2 substituted lead vanadate glass systems xGeO 2 (50-x)PbO:50V 2 O 5 (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 GeO 2 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.
KeywordsXRDDSCDC ConductivitySemiconducting Glasses
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