Electrical conduction in GeO2/BaO glasses.

M. Y.  Nadeem; M. F.  Wasiq; M.  Altaf; M. A Chaudhry; M. A.  Chaudhry

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Electrical conduction in GeO2/BaO glasses.

Author(s)

M. Y. Nadeem Department of Physics, Bahauddin Zakariya University, Multan, Pakistan

M. F. Wasiq Department of Physics, Bahauddin Zakariya University, Multan, Pakistan

M. Altaf Department of Physics, Bahauddin Zakariya University, Multan, Pakistan

M. A Chaudhry Department of Physics, Bahauddin Zakariya University, Multan, Pakistan

M. A. Chaudhry COMSATS Institute of Information Technology, Defence Road, Lahore, Pakistan

Abstract

The electrical measurements have been carried out in a number of germanate glasses described by the equation x mol % GeO2 + (100-x) mol % BaO. The samples were prepared using melt quench technique. D.C. electrical conduction of the glass specimens at room temperature was studied using the two probe method. The electrical conduction mechanism was found to be Poole-Frenkel. The Poole Frenkel coefficient of barrier lowering was found to lie in the range 5.82x10-5 to 8.45 x 10-5 eV m1/2 V-1/2. The electrical conductivity was found to decrease with the increasing value of the former to modifier weight ratio. The activation energy was also calculated by observing the temperature dependence of the conductivity.

Publication Details

Page(s) 429-438

DOI DOI not available

Published Journal: Journal of Research Science, Volume: 15, Issue: 4, Year: 2004

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