1. Luminescence quenching of Dy3+ ions in lead bismuthate glasses
- Author
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Pisarski, Wojciech A., Pisarska, Joanna, Lisiecki, Radosław, Dominiak-Dzik, Grażyna, and Ryba-Romanowski, Witold
- Subjects
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LUMINESCENCE spectroscopy , *QUENCHING (Chemistry) , *RARE earth ions , *LEAD compounds , *METALLIC glasses , *COMPARATIVE studies , *ENERGY transfer - Abstract
Abstract: Luminescence of lead bismuthate glasses PbO-Bi2O3-Ga2O3 containing Dy3+ ions has been studied. Two overlapping luminescence bands corresponding to 3P1–1S0 transition of Bi3+ and 4F9/2 –6H13/2 transition of Dy3+ were detected under 480nm excitation. Comparison of luminescence features for the system under study to those reported for dysprosium-doped lead borate glass PbO-B2O3-Ga2O3 indicates that the luminescence of Dy3+ is efficiently quenched by Bi3+ ions. Analysis of luminescence dynamics implies that the excitation energy transfer from Dy3+ to Bi3+ is nonradiative. The theoretical calculations using Inokuti–Hirayama model confirm strong luminescence of Dy3+ ions in lead bismuthate glasses. [Copyright &y& Elsevier]
- Published
- 2012
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