Eu3+ doped tellurite glass ceramics containing SrF2 nanocrystals: preparation, structure and luminescence properties

Michalina Walas , Tomasz Lewandowski , Anna Synak , Marcin Łapiński , Wojciech Sadowski , Barbara Kościelska

Abstract

Eu3+ doped tellurite glass ceramics containing SrF2 nanocrystals were prepared using melt quenching technique and subsequent heat treatment of glass in 370°C for different time periods. Thermal properties of glass matrix have been determined based on DSC measurements. XRD and XPS results confirmed formation of SrF2 nanocrystals in glass matrices after annealing at 370°C. FTIR studies revealed absorption bands in the range of 500–850 cm−1 characteristic to TeO2 glasses. Obtained materials exhibited emission originated from the 5DJ (J = 0–2) to the 7FJ (J = 0–4) transitions of Eu3+ ions under 395 and 465 nm excitations. TRES measurements indicated presence of two different surroundings of the Eu3+ ions. In glass ceramics samples longer lifetimes of 615 nm emission of Eu3+ were achieved in comparison to the precursor glass.
Author Michalina Walas
Michalina Walas,,
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, Tomasz Lewandowski
Tomasz Lewandowski,,
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, Anna Synak IFD
Anna Synak,,
- Institute of Experimental Physics
, Marcin Łapiński
Marcin Łapiński,,
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, Wojciech Sadowski
Wojciech Sadowski,,
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, Barbara Kościelska
Barbara Kościelska,,
-
Other language title versions
Journal seriesJournal of Alloys and Compounds, ISSN 0925-8388
Issue year2017
Vol696
Pages619-626
Publication size in sheets0.5
Keywords in Englishglass ceramics, luminescence, Eu3+, SrF2 nanocrystals
DOIDOI:10.1016/j.jallcom.2016.11.301
URL https://doi.org/10.1016/j.jallcom.2016.11.301
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 35.0, 20-12-2017, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 20-12-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 3.133 (2) - 2016=2.919 (5)
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