Luminescence dynamics in Eu3+ doped fluoroborate glasses
| Autor: | Carlos Jacinto, M.R. Dousti, W.Q. Santos, Raja J. Amjad |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Absorption spectroscopy
Chemistry Doping Biophysics 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Biochemistry Atomic and Molecular Physics and Optics 0104 chemical sciences Ion Excited state Atomic physics 0210 nano-technology Absorption (electromagnetic radiation) Spectroscopy Ground state Luminescence |
| Zdroj: | Journal of Luminescence. 192:827-831 |
| ISSN: | 0022-2313 |
| DOI: | 10.1016/j.jlumin.2017.08.018 |
| Popis: | Rare earth ions doped transparent glasses are among promising solid-state materials for various optical applications. In this report, Eu3+ ions doped new fluoroborate glasses were prepared by conventional melt-quenching technique and their optical properties were characterized by absorption and luminescence spectroscopy as well as excited state lifetime measurements. The absorption spectra revealed the characteristic transitions between the 7F0 ground state and 7F1 first excited state to the upper-lying electronic states. The variation in the luminescence intensity of the radiative transitions occurring at 590 and 611 nm and the bi-exponential behavior of the fluorescence decay of the 5D0 level, with different trend for the amplitude of the decays, are discussed in terms of low and high symmetry sites depending on the EuF3 concentration and the possible energy transfer between ions at these sites. |
| Databáze: | OpenAIRE |
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