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Effect of indium additive on the heat capacity of Se-Zn chalcogenide glasses

Published online by Cambridge University Press:  21 July 2011

A. K. Singh
A. K. Singh*
Affiliation:
Department of Physics, Faculty of Science, Banaras Hindu University, Varanasi, 221005, India
*
ae-mail: abhaysngh@rediffmail.com
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Abstract

Knowledge of endothermic and exothermic heat capacities of optoelectrics materials is important to define their energy/data storage capability. Heat capacities of Se98-xZn2Inx (0 ≤ x ≤ 10) chalcogenide glasses at glass transitions (Tg) and crystallisations temperatures (Tc) have been reported in this work. The evaluated endothermic (ΔCpg) and exothermic (ΔCpc) heat capacities of Se98-xZn2Inx system varies with alloying concentrations obtained minimum and maximum respectively at threshold composition (6 at wt.% of In). The up and down trend in ΔCpc and ΔCpg at Tg, Tc could be explained on the basis of structural units/avarage coordination number 〈r〉 of the glassy materials.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 55 , Issue 1: Focus on Hakone XII , July 2011 , 11103
Copyright
© EDP Sciences, 2011

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