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Correlative study of optical, electrical and thermal transport properties of Se100-xInx chalcogenide glasses

ABHAY KUMAR SINGH1, KEDAR SINGH1,*

Affiliation

  1. Department of Physics, Banaras Hindu University, Varansi-221005, India

Abstract

The measurements of optical energy band gap, dc electrical conductivity and thermal conductivity of Se100-XInx (X= 0, 5, 10, 15 and 20) chalcogenide glasses have been carried out at room temperature. The measured values of electrical conductivity and thermal conductivity are used to determine the Wiedemann-Franz ratio of the said materials in the composition range of variation. The variation of electrical and thermal conductivity have been found maximum at 10 at.wt.% of Indium (In). The variation of optical energy band gap and Wiedemann-Franz ratio have found minimum at 10 at. wt. % of In. The correlative results of optical energy band gap and dc electrical conductivity at various composition range of In can be consider as an experimental model for Se100-xInx for chalcogenide glasses. These behaviors of materials could be understood on the basis of bond formation of Se and In at different compositions..

Keywords

Optical energy band gap, dc electrical conductivity, Thermal conductivity, Wiedemann-Franz ratio, Chalcogenide glasses.

Submitted at: Oct. 20, 2007
Accepted at: Dec. 7, 2007

Citation

ABHAY KUMAR SINGH, KEDAR SINGH, Correlative study of optical, electrical and thermal transport properties of Se100-xInx chalcogenide glasses, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 12, pp. 3756-3759 (2007)