Concentration dependent luminescence and cross-relaxation energy transfers in Tb3+ doped fluoroborate glasses
| Autor: | M.R. Dousti, Carlos Jacinto, Raja J. Amjad, Tasso O. Sales |
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| Rok vydání: | 2019 |
| Předmět: |
Work (thermodynamics)
Materials science Doping Biophysics 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Condensed Matter::Disordered Systems and Neural Networks 01 natural sciences Biochemistry Atomic and Molecular Physics and Optics 0104 chemical sciences Ion Wavelength Excited state Solubility Atomic physics 0210 nano-technology Luminescence Excitation |
| Zdroj: | Journal of Luminescence. 205:282-286 |
| ISSN: | 0022-2313 |
| DOI: | 10.1016/j.jlumin.2018.09.031 |
| Popis: | Recently, mixed-former glasses have attracted a large attention due to the appropriate combinations of the chemical, physical and optical properties of each glass former. In this scenario, the optical properties of fluoroborate glasses doped with rare earth ions is of importance due to their good transparency window from ultra-violet to near-infrared region, good rare-earth solubility, long excited state lifetime of such ions, and high mechanical strength. In this work, we had studied the optical properties of the Tb3+ doped fluoroborate glasses, focusing on the concentration dependent behavior of luminescence dynamics of 5D3 and 5D4 exited states of this ion. The blue-to-green intensity ratio, lifetime of the emitting levels under various excitation wavelengths, cross-relaxation rate, ion-ion critical distance and emission gain bandwidth are calculated. |
| Databáze: | OpenAIRE |
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