Tuning the fluorescence of Dy3+ via the structure of borophosphate glasses
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Published:2023-02-02
Issue:1
Volume:13
Page:
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ISSN:2045-2322
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Container-title:Scientific Reports
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language:en
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Short-container-title:Sci Rep
Author:
Griebenow Kristin,Truong Mai-Phuong,Munoz Francisco,Klement Robert,Galusek Dusan
Abstract
AbstractThe optical characteristics of Dy3+-doped phosphate and borophosphate glasses with different divalent network modifiers prepared by melt-quenching are studied. The glass sets (A) with a molar composition of 40MO–60P2O5 and (B) with a molar composition of 40MO–20B2O3–40 P2O5 are investigated, both with M = (Zn2+, Mg2+, Ca2+, Sr2+, or Ba2+) and all doped with 0.1 mol% Dy2O3. Raman and fluorescence spectroscopy are used to analyse the structure and optical characteristics of these glasses. Four typical Dy3+ emission bands in the yellow (572 nm), blue (483 nm) and red (633 and 752 nm) regions of the spectrum are observed in both sets. The fluorescence lifetimes in each glass set are correlated to the network modifier's ionic field strength. The Mg2+ and Zn2+ containing glasses have the longest fluorescence lifetimes. The yellow to blue emission intensity ratio of the respective bands can be used to indicate a symmetric environment around Dy3+ ions and varies with the ionic field strength of the modifier cations: a higher ionic field strength leads to a higher yellow to blue ratio, which in turn indicates a higher asymmetrical local coordination environment of Dy3+ ions in the glassy host network.
Funder
Horizon 2020 Framework Programme Agentúra na Podporu Výskumu a Vývoja Friedrich-Schiller-Universität Jena
Publisher
Springer Science and Business Media LLC
Subject
Multidisciplinary
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