Spectroscopic analysis of lead borate systems

Title

Spectroscopic analysis of lead borate systems

Creator

Georgi A.D.; Ramesh K.P.; Mallikarjunaiah K.J.

Description

Oxide glass systems are interesting because of their bonding like bridging and non-bridging oxygens. Depending on the modifier, the B2O3 glass system can have various Boron-Oxygen network. It is found that, PbO modifies the borate network and increases the formation of penta and diborate groups. In this work, we investigated optical properties of Lead Borate glass systems (x PbO: (1-x) B2O3) with x varying from 30-85 mol % using UV-VIS Spectra and the corresponding band gap was estimated using Tauc relation and these systems behave like direct allowed band gap systems. These results show that, Eg decreases with the addition of lead content. Further the refractive index measurements also have been carried out at various wavelengths. Many correlation is found between the band gap and refractive index for different compositions. Using different theoretical models a best fit has been tried and Ravindra's relation is found to match with our experimental results. 2018 Author(s).

Source

AIP Conference Proceedings, Vol-1942

Date

2018-01-01

Publisher

American Institute of Physics Inc.

Coverage

Georgi A.D., Department of Physics, Christ University, Bengaluru, 560028, India; Ramesh K.P., Department of Physics, Indian Institute of Science, Bengaluru, 560012, India; Mallikarjunaiah K.J., Undergraduate Programme-Physics, Indian Institute of Science, Bengaluru, 560012, India

Rights

Restricted Access

Relation

ISSN: 0094243X; ISBN: 978-073541634-5

Format

Online

Language

English

Type

Conference paper

Identifier

https://doi.org/10.1063/1.5028819

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