Effect of Lead Bromide on Vanadium Ions in Lead Borate Glasses for Applications in Modern Optical Devices

Volume 7 Issue 1 April - June 2019

Research Paper

Effect of Lead Bromide on Vanadium Ions in Lead Borate Glasses for Applications in Modern Optical Devices

K. Chandra Sekhar*, N. Narsimlu**, Samdani***, G. Ramadevudu****, M. Narasimha Chary*****, Md. Shareefuddin******

* Assistant Professor, Department of Physics, Department of Physics, University College for Women, Osmania University, Hyderabad, Telangana, India.

**Assistant Professor, Department of Physics, University College of Engineering, Osmania University, Hyderabad, Telangana, India.

*** Lecturer,Department of Engineering, Salalah College of Technology, Salalah, Oman.

**** Professor (Rtd), Department Physics, Osmania University, Hyderabad, Telangana, India.

*****Senior Assistant Professor, Department of Physics Osmania University, Hyderabad, Telangana, India.

Sekhar, K.C, Narsimlu, N., Samdani., Ramadevudu, G., Chary, N.M., and Shareefuddin, Md. (2019). Effect of lead bromide on vanadium ions in lead borate glasses for applications in modern optical devices. i-manager’s Journal on Material Science , 7(1), 37-43. https://doi.org/10.26634/jms.7.1.15718

Abstract

The lead halo borate glasses with composition xPbBr2 - (30−x)PbO - 68B2O3- 2V2O5 (where 5 ≤ x ≤ 25 mol%) were prepared by using melt quenching technique. Physical and optical properties were investigated with increasing PbBr2 content. Using X-Ray Diffraction (XRD), amorphous nature of glass samples is confirmed. Archimedes principle is used to determine the density of the glass samples. When oxygen ions are replaced by bromine ions the density is found to decrease. The ionic radii of bromide ions played an important role in explaining the physical properties like density and molar volume. Optical band gap and Urbach energy values were evaluated from optical absorption spectra. Using these values refractive index, molar refraction and molar electronic polarisability were determined. FTIR analysis was employed to explore the impact of lead bromide on the structure of lead borate glasses.