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Thermal and spectroscopic investigations of glasses in the system PbO-PbCl2-PbBr2

Chethana, BK and Viswanatha, R and Reddy, Narayana C and Rao, KI (2015) Thermal and spectroscopic investigations of glasses in the system PbO-PbCl2-PbBr2. In: PHYSICS AND CHEMISTRY OF GLASSES-EUROPEAN JOURNAL OF GLASS SCIENCE AND TECHNOLOGY PART B, 56 (3). pp. 115-120.

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Official URL: http://www.researchgate.net/publication/279633638_...

Abstract

Glass formation has been examined in the system 15PbO.xPbCl(2).(85-x)PbBr2 (where 0 <= x <= 25)where the PbO concentration is kept constant while PbCl2 and PbBr2 concentrations are varied. The glasses have been examined using thermal and spectroscopic techniques. T-8, Delta C-p, refractive index, optical basicity have been found to remain unaffected by the composition which is a curious feature of these glasses. It is found that there is a wide infrared window available for use in the investigated glasses. The IR window extends from 1000 to 1500 cm(-1) and in glasses where PbCl2 is less than 20 mol%, the window extends up to 2260 cm(-1). X-ray photoelectron spectra (XPS) revealed that the 4f(5/2) and 4f(7/2) peaks due to f-level transitions have a constant difference in energies, but with energy and FWHM values that varying sensitively and systematically with composition. The observations are discussed and suitable explanations are provided.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the SOC GLASS TECHNOLOGY, 9 CHURCHILL WAY, SHEFFIELD S35 2PY, CHAPELTOWN, ENGLAND
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Depositing User: Id for Latest eprints
Date Deposited: 26 Aug 2015 06:55
Last Modified: 26 Aug 2015 06:55
URI: http://eprints.iisc.ac.in/id/eprint/52252

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