Effect of the zinc substitution on the physical and optical properties of tellurium vanadate glasses

Athokpam, S and Jeevan Fernandes, B and Ramesh, KP and Mallikarjunaiah, KJ (2023) Effect of the zinc substitution on the physical and optical properties of tellurium vanadate glasses. In: International Conference on Applied Research in Engineering Sciences, ICARES 2022, 24 November 2022, Bengaluru, pp. 113-118.

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Abstract

In this communication, we report the physical and optical properties of xZnO-(60-x)TeO2-40V2O5(x = 20, 25, 30, 35, and 40 mol) glass systems. The glasses were prepared using the melt-quenching method. The amorphous nature of the glass systems was confirmed using powder X-ray diffraction. We have elucidated the changes in the rigidity and elastic moduli of the glass system as a function of composition. These changes were measured in terms of changes in the physical parameters like density, molar volume, and packing density of the glasses. The elastic moduli of the glass systems, like Young's modulus, bulk modulus, shear modulus, longitudinal modulus, and Poisson's ratio, were estimated using Makishima-Mackenzie's theory. The changes in the elasticity of the present system were correlated with the structural changes occurring in the glasses by adding ZnO at the expense of TeO2. The optical properties of the glass system were found by means of diffuse reflectance spectroscopy. Using Kubelka Munk method, the corresponding band gap energy and Urbach energy of the glass system were estimated. The present investigation sheds light on understanding the concentration effect of ZnO in the glass network. © 2023 Elsevier Ltd. All rights reserved.

Item Type:	Conference Paper
Publication:	Materials Today: Proceedings
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to the Elsevier Ltd.
Keywords:	Elastic moduli; Energy gap; Glass; II-VI semiconductors; Optical communication; Reflection; Tellurium; Tellurium compounds; Zinc; Zinc oxide, Density; Diffuse reflectance spectroscopy; Glass systems; Kubelka-munk methods; Makishimum-mackenzie model; Melt quenching method; Optical-; Physical parameters; Vanadate glass; Volume density, Optical properties
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	03 Dec 2023 06:35
Last Modified:	03 Dec 2023 06:35
URI:	https://eprints.iisc.ac.in/id/eprint/83464

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