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ARTICLE

Kinetics of thermally induced processes in Ag doped As₄₀Se₃₀Te₃₀ chalcogenide glass

R. Vigi^a, G. R. Štrbac^a, D. D. Štrbac^b,*, O. Bošák^c, M. Kubliha^c

a University of Novi Sad, Faculty of Sciences, Trg Dositeja Obradovica 4, Novi Sad, Serbia
b University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovica 6, Novi Sad, Serbia
c Faculty of Materials Science and Technology, Slovak University of Technology, Bottova 25, 917 24 Trnava, Slovakia

* Corresponding Author:

Chalcogenide Letters 2024, 21(1), 21-37. https://doi.org/10.15251/CL.2024.211.21

Received 20 October 2023; Accepted 04 January 2024;

Abstract

The processes of glass-transition and crystallization of chalcogenide glass As₄₀Se₃₀Te₃₀ with 5 at.% silver were analyzed using differential scanning calorimetry. The values of glass-transition temperatures and activation energy were determined. Two crystallization processes were also detected and three-dimensional growth. Using non-isoconversional models the activation energies for both processes amounted to 112(2) kJ/mol and 97(2) kJ/mol. Isoconversional models were used to track changes in activation energy. The presence of Te significantly affects the thermal parameters as well as the structure of the glass while the presence of Ag does not significantly change the degree of connectivity of the As₄₀Se₃₀Te₃₀ glass matrix.

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