Investigation of ab-inito, Photoluminescence and electrical studies of Li2Co(WO4)2
| Autor: | D L Shruthi, G N Anil Kumar, A Jagannatha Reddy |
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| Rok vydání: | 2022 |
| Zdroj: | IOP Conference Series: Materials Science and Engineering. 1219:012003 |
| ISSN: | 1757-899X 1757-8981 |
| Popis: | The optical properties of the material is depends on the site occupancy of the doping in the host lattice. In the present study, wereport the synthesis, characterisation, optical properties and ab-initio studies of Li2Co(WO4)2microcrystals synthesized by traditional and easy solid state method. The x-ray diffraction study shows the compound which arecrystallized in the triclinic crystal system space group PÏ.The average crystallite size was estimated from diffraction study found to be 109 nm. From UV-Visible spectroscopic study the calculated band gap is 2.69 eV for the phosphor. The Li2Co(WO4)2 phosphors shows the Photoluminescence under an excitation wavelength of 331 nm. A strong blue green peak emission at 447 nm was observed due to the transition from 3T1u levels to the 1A1g level. The electrical impedance studies were carried out to enunciate the impedance behaviour of Li2Co(WO4)2and to depict different conduction and relaxation processes.Further, theab-initiostudies were carried out in detail to understand electronic properties of the phosphor. |
| Databáze: | OpenAIRE |
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