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Optical and Vibrational Spectroscopy of Ba0.85Ca0.15Zr0.1Ti0.9 O-3 Modified Lithium Borate Glass Ceramics

Viswanath, Pamarti and Prashanth, Sadhu Sai Pavan and Molli, Muralikrishna and Wicram, Jaschin Prem and Muthukumar, Sai (2018) Optical and Vibrational Spectroscopy of Ba0.85Ca0.15Zr0.1Ti0.9 O-3 Modified Lithium Borate Glass Ceramics. In: 62nd DAE Solid State Physics Symposium, DEC 26-30, 2017, Mumbai, INDIA.

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Official URL: https://dx.doi.org/10.1063/1.5028833

Abstract

Glass ceramics are excellent replacement for single crystalline materials which are expensive and difficult to fabricate. In this context, we have attempted to fabricate glass nanocomposites comprising of Lithium Borate glass matrix embedded with lead free ferroelectric Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT). Both of these functional materials are known to exhibit excellent ferroelectric behavior and are currently explored for various device applications. We have prepared these novel glass nanocomposite using melt-quenching techniquein various chemical composition involving different molar ratio. x(Ba0.85Ca0.15Zr0.1Ti0.9O3)-(1-x)(Li2O center dot 2B2O3) where (x=0.1,0.2,0.3,0.4). The as-quenched samples exhibited amorphous nature as revealed by X-ray Diffraction studies. With the increase in BCZT content we have observed significant alteration in optical bandgap and Urbach energy. The tailoring of optical properties by tuning the structure was probed by Raman vibrational spectroscopy which confirmed the dominant role played by BCZT as a network modifier in these borate glasses. Concomitantly, these glass nanocomposites were found to be excellent UV absorbers.

Item Type: Conference Proceedings
Additional Information: Copy right of this article belong to AMER INST PHYSICS, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Depositing User: Id for Latest eprints
Date Deposited: 20 Jun 2018 14:38
Last Modified: 04 Oct 2018 15:39
URI: http://eprints.iisc.ac.in/id/eprint/60061

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