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Synthesis and characterization of barium fluoride substituted zinc tellurite glasses

Aishwarya, K and Vinitha, G and Varma, Sreevidya G and Asokan, S and Manikandan, N (2017) Synthesis and characterization of barium fluoride substituted zinc tellurite glasses. In: PHYSICA B-CONDENSED MATTER, 526 . pp. 84-88.

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Official URL: http://doi.org/10.1016/j.physb.2017.09.039


Glasses in the TeO2-ZnO-BaF2 system were prepared by standard melt quenching technique and were characterized for their thermal, optical and structural properties. Samples were found to show good thermal stability with values ranging above 100 degrees C for all the compositions. Optical bandgap and refractive index values were calculated from linear optical measurements using UV-Vis spectroscopy. Infrared spectra showed the presence of hydroxyl groups in the glasses indicating that the effect of fluorine was negligible in removing the hydroxyl impurities for the experimental conditions and compositions used. Raman measurements showed the modification occurring in the glass network due to addition of barium fluoride in terms of increase in the formation of non-bridging oxygen atoms compared to strong Te-O-Te linkages in the glass matrix.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited: 24 Nov 2017 10:16
Last Modified: 24 Nov 2017 10:16
URI: http://eprints.iisc.ac.in/id/eprint/58296

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