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Dependence of the Spectroscopic Properties of Europium on the Spatial Distribution of Rare-Earth Ions in Fluorophosphate Glasses

  • Proceedings of the Topical Meeting of the European Ceramic Society “Nanoparticles, Nanostructures, and Nanocomposites”
  • (St. Petersburg, Russia, July 5–7, 2004)
  • Published:
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Abstract

Doped fluorophosphate glasses containing 4–13 mol % Ba(PO3)2 have been studied. Analysis of the Raman spectra has revealed that the structure of glasses containing up to 1 mol % Ba(PO3)2 involves isolated [PO4] tetrahedra. An increase in the Ba(PO3)2 content brings about the formation of pyrophosphate groups, which are dominant in the glass containing 11 mol % Ba(PO3)2. The introduction of up to 2 mol % EuF3 into the glasses containing 5 and 7 mol % Ba(PO3)2 leads to a decrease in the Landau-Placzek ratio. This is interpreted within the model of segregation of dopant ions. From analyzing the induced absorption spectra, the content of Eu3+ ions with a predominantly phosphate environment is estimated at ∼0.005 mol %. It is shown that, for the glasses containing 4 mol % Ba(PO3)2, the intensity ratio of the Eu3+ luminescence bands attributed to the 5 D 0-7 F 1 and 5 D 0-7 F 2 transitions changes with an increase in the EuF3 content from 0.01 to 2.0 mol %. This dependence of the intensity ratio on the EuF3 content exhibits a maximum at 0.5 mol % EuF3, which is explained by the change in the local environment of the rare-earth ion.

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Authors and Affiliations

  1. St. Petersburg State Polytechnical University, Politekhnicheskaya ul. 29, St. Petersburg, 195251, Russia

    T. V. Bocharova, G. O. Karapetyan & A. M. Mironov

  2. St. Petersburg State Technological Institute (Technical University), Moskovskii pr. 26, St. Petersburg, 198013, Russia

    N. O. Tagil’tseva

  3. St. Petersburg Technological University of Plant Polymers, ul. Ivana Chernykh 4, St. Petersburg, 198095, Russia

    O. V. Yanush

Authors
  1. T. V. Bocharova
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  2. G. O. Karapetyan
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  3. A. M. Mironov
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  4. N. O. Tagil’tseva
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  5. O. V. Yanush
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Original Russian Text Copyright © 2005 by Fizika i Khimiya Stekla, Bocharova, Karapetyan, Mironov, Tagil’tseva, Yanush.

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Bocharova, T.V., Karapetyan, G.O., Mironov, A.M. et al. Dependence of the Spectroscopic Properties of Europium on the Spatial Distribution of Rare-Earth Ions in Fluorophosphate Glasses. Glass Phys Chem 31, 420–426 (2005). https://doi.org/10.1007/s10720-005-0078-9

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  • DOI: https://doi.org/10.1007/s10720-005-0078-9

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