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Luminescent Properties of Composite Materials Based on Nanoporous Silicate Glass Activated by Tb3+ Ions and AgBr

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Abstract

Composite materials (CMs) containing Tb3+ ions and silver bromide, based on matrices of high-silica nanoporous glasses, are synthesized. It is found that the samples, depending on the conditions of their synthesis, possess UV (λlum = 310 nm at λexc = 266 nm) and blue-green (λlum = 400–545 nm at λexc = 316–375 nm) luminescence due to the presence of silicon defect centers and the presence of paired Ag+–Ag+ centers, Tb3+ ions, and isolated Ag+ ions. The concentration distribution of the elements over the thickness of the samples is established by the method of energy-dispersive X-ray spectroscopy.

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ACKNOWLEDGMENTS

The authors are grateful to A.V. Antonov (Karpinsky Russian Geological Research Institute, St. Petersburg) for studying the CMs by energy-dispersive X-ray spectroscopy. The experimental measurements of the luminescent properties of CMs were carried out at the Resource Centre “Optical and Laser Methods for Material Research” (Science Park, St. Petersburg State University).

Funding

This study was financially supported by the Russian Foundation for Basic Research as part of scientific project no. 18-33-00527.

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Authors and Affiliations

  1. Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, 199034, St. Petersburg, Russia

    M. A. Girsova, L. N. Kurilenko & I. N. Anfimova

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  1. M. A. Girsova
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  2. L. N. Kurilenko
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  3. I. N. Anfimova
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Correspondence to M. A. Girsova.

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Girsova, M.A., Kurilenko, L.N. & Anfimova, I.N. Luminescent Properties of Composite Materials Based on Nanoporous Silicate Glass Activated by Tb3+ Ions and AgBr. Glass Phys Chem 47, 62–65 (2021). https://doi.org/10.1134/S1087659621010053

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  • DOI: https://doi.org/10.1134/S1087659621010053

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