Optical and X-ray induced luminescence of Sm3+ -doped borotellurite and fluoroborotellurite glasses: A comparative study
| Autor: | K. Boonin, L. Yuliantini, E. Kaewnuam, P. Yasaka, J. Kaewkhao, Mitra Djamal, V. Venkatramu, Rahmat Hidayat |
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| Rok vydání: | 2019 |
| Předmět: |
Photoluminescence
Materials science Absorption spectroscopy Doping Biophysics Analytical chemistry X-ray 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Biochemistry Fluorescence Atomic and Molecular Physics and Optics 0104 chemical sciences Ion Absorbance 0210 nano-technology Luminescence |
| Zdroj: | Journal of Luminescence. 213:19-28 |
| ISSN: | 0022-2313 |
| DOI: | 10.1016/j.jlumin.2019.04.016 |
| Popis: | Borotellurite and fluoroborotellurite glasses doped with Sm3+ ions were synthesized and studied their physical, photoluminescence, x-ray induced luminescence, and fluorescence decays. The glasses that were prepared by melt quenching technique were labelled by BTZOS for 30B2O3 + 29TeO2 + 30BaO + 10ZnO + 1Sm2O3 and BTZFS for 30B2O3 + 29TeO2 + 30BaO + 10ZnF2 + 1Sm2O3. The glass becomes more transparent when ZnO was replaced by ZnF2. It was found that the replacement of ZnO by ZnF2 increases absorbance and luminescence of Sm3+ ions. The Judd - Ofelt intensity parameters were evaluated from measured absorption spectra for BTZOS and BTZFS glasses and their trend is found to be Ω2 > Ω4 > Ω6. The sharp and intense emission peak was originated from 4G5/2 → 6H7/2 transition centred at 600 nm under 403 nm excitation. The colour coordinates of BTZOS and BTZFS glasses are found to fall in the orange region with CCT |
| Databáze: | OpenAIRE |
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