Novel inorganic xerogels doped with CaWO4:xDy: synthesis, characterization and luminescence properties

Beata Grobelna , Anna Synak , Dorota Głowaty , Piotr Bojarski , Elżbieta Szczepańska , Karol Szczodrowski , Ignacy Gryczyński , Jakub Karczewski

Abstract

A series of novel phosphors based on silica xerogel doped with CaWO4:xDy(III) with various concentration of dysprosium ion was synthesized over a temperature of 800°C. The thermal analysis, XRD measurement and spectroscopic investigations of these materials are presented in this study. Steady state luminescence, luminescence excitation spectra as well as emission spectra have been measured. Under the ultraviolet light, the prepared phosphors show characteristic blue and yellow bands which correspond to 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 transitions of Dy3+ ion, respectively. The concentration quenching effect occurs when the Dy3+ concentration is x = 0.1.We also present the possibility to increase the emission intensity of Dy(III) doped CaWO4 incorporated into silica xerogel as a result of its interaction with surface plasmons created by silver nanoparticles.
Author Beata Grobelna (FCh / DACh / LChAC)
Beata Grobelna,,
- Laboratory of chemistry and Analytics of Cosmetics
, Anna Synak (FMPI / IEP)
Anna Synak,,
- Institute of Experimental Physics
, Dorota Głowaty (FCh / DACh / LChAC)
Dorota Głowaty,,
- Laboratory of chemistry and Analytics of Cosmetics
, Piotr Bojarski (FMPI / IEP)
Piotr Bojarski,,
- Institute of Experimental Physics
, Elżbieta Szczepańska (FCh / DACh / LChAC)
Elżbieta Szczepańska,,
- Laboratory of chemistry and Analytics of Cosmetics
, Karol Szczodrowski (FMPI / IEP)
Karol Szczodrowski,,
- Institute of Experimental Physics
, Ignacy Gryczyński
Ignacy Gryczyński,,
-
, Jakub Karczewski
Jakub Karczewski,,
-
Other language title versions
Journal seriesMaterials Chemistry and Physics, ISSN 0254-0584, (A 30 pkt)
Issue year2017
Vol199
Pages166-172
Publication size in sheets0.5
Keywords in Englishluminescence, dysprosium(III) ions, sol-gel processes, silver nanoparticles, calcium tungstate
DOIDOI:10.1016/j.matchemphys.2017.07.005
URL https://doi.org/10.1016/j.matchemphys.2017.07.005
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 30.0, 20-12-2017, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 20-12-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 2.084 (2) - 2016=2.283 (5)
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