A study on optical properties of MnO doped borobismuthate glasses
| Autor: | Pavan Kumar Pothuganti, PadmaSuvarna Reniguntla, Muralidhara Reddy Kalimi, Ashok Bhogi |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Band gap Doping Analytical chemistry 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Optical conductivity Amorphous solid Molar volume Polarizability 0103 physical sciences 0210 nano-technology Absorption (electromagnetic radiation) Refractive index |
| Zdroj: | Materials Today: Proceedings. 41:1008-1012 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2020.06.111 |
| Popis: | A series of borobismuthate glasses doped with MnO with 0, 0.2, 0.4, 0.6, 0.8 and 1 mol% were prepared by melt quenching technique. X-Ray Diffraction (XRD) studies confirms the amorphous nature of samples. The parameters density, molar volume, molar refraction and oxygen packing density (OPD) were calculated and it is observed that density decreases and molar volume increases with increase in MnO component due to formation of Non Bridging Oxygens (NBO). Optical absorption studies were done for glass samples and it shows that optical bandgap energy (Eopt) and metallization criterion (M) decreases with increase in MnO component indicates that these glasses can behave as amorphous semiconductors. Apart from this the optical parameters such as linear refractive index (n), coefficient of absorption (α), coefficient of extinction (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. |
| Databáze: | OpenAIRE |
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