Concentration quenching mechanism of dysprosium(III) ions in silicate-substituted fluorapatite

Silicon-substituted apatite doped with Dy3+ ions was obtained by using microwave assisted hydrothermal techniques. The general formula of obtained samples is related to Ca10-xDyx(PO4)2(SiO4)4F2, where x = 0.05; 0.1; 0.2; 0.5. The structural, and morphological features of the obtained materials were...

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Veröffentlicht in:Ceramics international Jg. 49; H. 24; S. 41114 - 41122
Hauptverfasser: Targońska, Sara, Wiglusz, Rafal J.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier Ltd 15.12.2023
Schlagworte:
Concentration quenching
Dysprosium(III) ion
Fluorapatite
Luminescence
Nanosized silicate-substituted compounds
Dysprosium(III) ion
Nanosized silicate-substituted compounds
Luminescence
Concentration quenching
Fluorapatite
ISSN:0272-8842, 1873-3956
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Zusammenfassung:Silicon-substituted apatite doped with Dy3+ ions was obtained by using microwave assisted hydrothermal techniques. The general formula of obtained samples is related to Ca10-xDyx(PO4)2(SiO4)4F2, where x = 0.05; 0.1; 0.2; 0.5. The structural, and morphological features of the obtained materials were determined by using XRD (X-ray powder diffraction) and SEM imaging (Scanning Electron Microscopy). The Rietveld refitment was used for estimation of unit-cell parameters. The photoluminescence of the Dy3+ ions was detected and analysed as a function of dopant concentration. The particular attention was focused on the concentration quenching of Dy3+ ion luminescence as well as the critical transfer radius was calculated. The chromaticity diagram, emission colour and correlated colour temperature (CCT) were evaluated.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2023.06.221