Rare earth-doped lead borate glasses and transparent glass-ceramics: structure-property relationship |
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Authors: | Pisarski W A Pisarska J M?czka M Lisiecki R Grobelny ? Goryczka T Dominiak-Dzik G Ryba-Romanowski W |
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Institution: | Institute of Chemistry, University of Silesia, Szkolna 9, 40-007 Katowice, Poland. Wojciech.Pisarski@us.edu.pl |
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Abstract: | Correlation between structure and optical properties of rare earth ions in lead borate glasses and glass-ceramics was evidenced by X-ray-diffraction, Raman, FT-IR and luminescence spectroscopy. The rare earths were limited to Eu(3+) and Er(3+) ions. The observed BO(3)?BO(4) conversion strongly depends on the relative PbO/B(2)O(3) ratios in glass composition, giving important contribution to the luminescence intensities associated to (5)D(0)-(7)F(2) and (5)D(0)-(7)F(1) transitions of Eu(3+). The near-infrared luminescence and up-conversion spectra for Er(3+) ions in lead borate glasses before and after heat treatment were measured. The more intense and narrowing luminescence lines suggest partial incorporation of Er(3+) ions into the orthorhombic PbF(2) crystalline phase, which was identified using X-ray diffraction analysis. |
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