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Compositional-dependent lead borate based glasses doped with Eu ions: Synthesis and spectroscopic properties |
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| Authors: | W.A. Pisarski J. Pisarska M. M?czka |
| Affiliation: | a Institute of Materials Science, University of Silesia, Bankowa 12, 40-007 Katowice, Poland b Department of Materials Science, Silesian University of Technology, Katowice, Poland c Institute of Low Temperature and Structure Research, Wroc?aw, Poland |
| Abstract: | New multicomponent lead borate based glasses with various PbO/B2O3 weight ratio were prepared. The glass samples were analyzed in detail by using Raman and IR absorption spectroscopy. Optical properties of Eu3+ ions have been investigated in lead borate based systems, in which PbO/B2O3 weight ratios were changed from 1:2 to 8:1 in glass composition. The values of the phonon energy of the host and 5D0 lifetime of Eu3+ decrease, whereas absorption and emission intensities, as well as bonding parameter increase with increasing PbO concentration. Additionally, spectral lines are shifted in direction to the lower frequency region. Non-monotonic dependence of the fluorescence intensity ratio R (5D0-7F2/5D0-7F1) upon PbO/B2O3 content has been observed in contrast to bonding parameter that is also non-linear but monotonic. Some structural and spectroscopic aspects for Eu-doped lead borate based glasses are presented. |
| Keywords: | A. Glasses D. Optical properties D. Luminescence |
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