Optical Properties of Lead-Phosphate Glasses Containing Barium, Magnesium, and Calcium Oxides

International Journal of Applied Physics
© 2020 by SSRG - IJAP Journal
Volume 7 Issue 3
Year of Publication : 2020
Authors : Dhyghm A. Ibrahim, Najat A. Dahham, Manaf A. Hassan

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Dhyghm A. Ibrahim, Najat A. Dahham, Manaf A. Hassan, "Optical Properties of Lead-Phosphate Glasses Containing Barium, Magnesium, and Calcium Oxides," SSRG International Journal of Applied Physics, vol. 7,  no. 3, pp. 9-18, 2020. Crossref, https://doi.org/10.14445/23500301/IJAP-V7I3P103

Abstract:

Glasses with compositions
X% BaO – 25% PbO – (75-X)% P2O5
X% CaO – 25% PbO – (75-X)% P205
X% MgO – 25% PbO – (75-X)% P2O5
Where x = 5,10,15,and 20 mol%) were prepared by the convocational melt quenching method. The density, molar volume x-ray diffraction (XRD), optical energy band gap on IR Spectra of these glasses have been measured. The refractive index and molar refraction of oxide ion have been calculated by using Lorentz - Lorentz relations. Optical absorption Spectra of these glasses were recorded in the range(190-900)nm at room temperature. Refractive index (n) and optical energy bandgap(Eopt) agree well compared with other glasses. In directed allowed optical transitions are favorable in these glasses, and the optical band energy has been observed to decrease with an increase in BaO, MgO, and CaO content. Infrared IR spectroscopy showed that the addition of BaO, MgO, CaO does not introduce any new absorption band in lead phosphate oxide glasses.

Keywords:

Optical properties, Oxide Glasses, Absorption Edge, lead phosphate oxide glasses,

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