Eur. Phys. J. Appl. Phys. 55, 11103 (2011)
https://doi.org/10.1051/epjap/2011100517

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

Department of Physics, Faculty of Science, Banaras Hindu University, Varanasi, 221005, India

^a e-mail: abhaysngh@rediffmail.com

Received: 25 December 2010
Revised: 10 February 2011
Accepted: 16 February 2011
Published online: 21 July 2011

Abstract

Knowledge of endothermic and exothermic heat capacities of optoelectrics materials is important to define their energy/data storage capability. Heat capacities of Se_98-xZn₂In_x (0 ≤ x ≤ 10) chalcogenide glasses at glass transitions (T_g) and crystallisations temperatures (T_c) have been reported in this work. The evaluated endothermic (ΔC_pg) and exothermic (ΔC_pc) heat capacities of Se_98-xZn₂In_x system varies with alloying concentrations obtained minimum and maximum respectively at threshold composition (6 at wt.% of In). The up and down trend in ΔC_pc and ΔC_pg at T_g, T_c could be explained on the basis of structural units/avarage coordination number 〈r〉 of the glassy materials.