| Autor: |
Pothugantia, Pavan Kumar, Bhogib, Ashok, Kalimi, Muralidhara Reddy, Reniguntla, Padamasuvarna |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2020, Vol. 2220 Issue 1, p080038-1-080038-6, 6p, 3 Charts, 4 Graphs |
| Abstrakt: |
A batch of glasses prepared by melt quenching technique with composition 20 BaO- 10Bi2O3-(70-x) B2O3 – x TiO2 (x=0, 0.2, 0.4, 0.6, 0.8 and 1 mol%). X-Ray Diffraction (XRD) studies proved that the batch of samples have amorphous nature. The parameters density, molar volume and oxygen packing density (OPD) were calculated and it is observed that density varies between 3.978 to 3.843 and molar volume changes with density this is due to formation and modification of Non Bridging Oxygens (NBO). Optical absorption studies were done for batch of glass samples. It is observed that optical bandgap energy (Eopt) increased by doping of titanium dioxide but decreases as concentration of TiO2 increases. Metallization criterion (M) increased by introducing TiO2 but then the value not varied much by increasing TiO2 content, which is indicating that these glasses can behave as amorphous semiconductors. The other optical parameters such as refractive index (n), absorption coefficient (α), extinction coefficient (K), optical conductivity (σop), optical polarizability (αo) and optical basicity (Λth) have also been evaluated for all samples and studied as a function of wavelength. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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