Citation
Alazoumi, Salah Hassan and Abdul Aziz, Sidek and El-Mallawany, Raouf Ahmed H. and Aliyu, Umar Sa'ad and Mohamed Kamari, Halimah and Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Ushah, Abdulbaset
(2018)
Optical properties of zinc lead tellurite glasses.
Results in Physics, 9.
1371 - 1376.
ISSN 2211-3797
Abstract
Tellurite glass systems in the form of [ZnO]x [(TeO2)0.7-(PbO)0.3]1-x with x = 0.15, 0.17, 0.20, 0.22 and 0.25 mol% were prepared using the melt quenching technique. XRD of the prepared samples have been measured for all samples. Both FTIR (280–4000 cm−1) and UV-Vis (200–800 nm) spectra have been measured. Optical band gap and refractive index were calculated for every glass sample. Density of glass, molar volume and oxygen packing density (OPD) were obtained. Values of the direct, indirect band gap ranged were found in the range 3.41–3.94 eV and 2.40–2.63 eV with increasing of ZnO concentration. Refractive index 2.58 and dielectric constant 6.66 were heigh at 17 ZnO mol% concentration. Molar polarizability, metallization criterion, polaron radius have been calculated for every glass composition.
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