• Electrical conduction mechanism in GeSeSb chalcogenide glasses

• # Fulltext

https://www.ias.ac.in/article/fulltext/boms/039/01/0255-0262

• # Keywords

DC conductivity; chalcogenide glass; Sb–Se bonding; Poole–Frenkel mechanism.

• # Abstract

Electrical conductivity of chalcogenide glassy system Ge$_{30−x}$Se$_{70}$Sb$_{x}$ (𝑥 = 10, 15, 20 and 25) prepared by melt quenching has been determined at different temperatures in bulk through the $I$–$V$ characteristic curves. It is quite evident from results that Poole–Frenkel conduction mechanisms hold good for conduction in these glasses in a given temperature range. The variation in electrical conductivity with composition was attributed to the Se–Sb bond concentration in the Se–Ge–Sb system. Results indicated that Ge$_5$Se$_{70}$Sb$_{25}$ showed the minimum resistance. In view of this the composition Ge$_5$Se$_{70}$Sb$_{25}$ may be coined as ‘critical composition’ in the proposed series. Also the activation energies of conduction of these glassy alloys have been calculated in higher and lower temperature range using the Arrhenius equation.

• # Author Affiliations

1. Department of Physics, Semi-conductor & Polymer Science Laboratory, Room No. 14-15, University of Rajasthan, Jaipur 302 004, India

• # Bulletin of Materials Science

Current Issue
Volume 42 | Issue 6
December 2019

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019