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10.3390/ma14164490
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Article

From Structure to Luminescent Properties of B2O3-Bi2O3-SrF2 Glass and Glass-Ceramics Doped with Eu3+ Ions

by
Karolina Milewska
1,*,
Michał Maciejewski
1,
Anna Synak
2,
Marcin Łapiński
1,
Aleksandra Mielewczyk-Gryń
1,
Wojciech Sadowski
1 and
Barbara Kościelska
1,*
1
Faculty of Applied Physics and Mathematics, Institute of Nanotechnology and Materials Engineering, Gdańsk University of Technology, ul. Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland
2
Faculty of Mathematics, Physics and Informatics, Institute of Experimental Physics, University of Gdańsk, ul. Wita Stwosza 57/246, 80-952 Gdańsk, Poland
*
Authors to whom correspondence should be addressed.
Materials 2021, 14(16), 4490; https://doi.org/10.3390/ma14164490
Submission received: 30 June 2021 / Revised: 23 July 2021 / Accepted: 7 August 2021 / Published: 10 August 2021
(This article belongs to the Section Advanced and Functional Ceramics and Glasses)
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Abstract

Glass-ceramics with the composition B2O3-Bi2O3-SrF2 were synthesized by the conventional melt-quenching technique and subsequent crystallization of the parental glasses. The temperature at which the ceramization was carried out was selected based on differential scanning calorimetry (DSC) analysis. The structure of the studied materials and the formation of SrF2 nanocrystals were confirmed by the Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) techniques. It was found that the amount of strontium fluoride introduced into the parental borate-bismuth glass has a significant impact on the growth of SrF2 nanocrystals. In particular, the influence of the crystalline SrF2 phase on luminescence intensity and kinetics was studied using Eu2O3-doped samples. An increase in luminescence intensity was observed in the samples in which SrF2 nanocrystals were formed. This is most likely related to the fact that some of the Eu3+ ions were (after annealing of the glass) located in the crystalline structure of strontium fluoride. This was confirmed both by the luminescence lifetime obtained based on the luminescence decay curves and the calculated Judd–Ofelt parameters, Ω2 and Ω4. The results achieved confirm that the glasses and glass-ceramics described in this work could be considered as a new phosphor for light-emitting diodes (LEDs).
Keywords: glass; glass-ceramics; luminescence; nanocrystals glass; glass-ceramics; luminescence; nanocrystals
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MDPI and ACS Style

Milewska, K.; Maciejewski, M.; Synak, A.; Łapiński, M.; Mielewczyk-Gryń, A.; Sadowski, W.; Kościelska, B. From Structure to Luminescent Properties of B2O3-Bi2O3-SrF2 Glass and Glass-Ceramics Doped with Eu3+ Ions. Materials 2021, 14, 4490. https://doi.org/10.3390/ma14164490

AMA Style

Milewska K, Maciejewski M, Synak A, Łapiński M, Mielewczyk-Gryń A, Sadowski W, Kościelska B. From Structure to Luminescent Properties of B2O3-Bi2O3-SrF2 Glass and Glass-Ceramics Doped with Eu3+ Ions. Materials. 2021; 14(16):4490. https://doi.org/10.3390/ma14164490

Chicago/Turabian Style

Milewska, Karolina, Michał Maciejewski, Anna Synak, Marcin Łapiński, Aleksandra Mielewczyk-Gryń, Wojciech Sadowski, and Barbara Kościelska. 2021. "From Structure to Luminescent Properties of B2O3-Bi2O3-SrF2 Glass and Glass-Ceramics Doped with Eu3+ Ions" Materials 14, no. 16: 4490. https://doi.org/10.3390/ma14164490

APA Style

Milewska, K., Maciejewski, M., Synak, A., Łapiński, M., Mielewczyk-Gryń, A., Sadowski, W., & Kościelska, B. (2021). From Structure to Luminescent Properties of B2O3-Bi2O3-SrF2 Glass and Glass-Ceramics Doped with Eu3+ Ions. Materials, 14(16), 4490. https://doi.org/10.3390/ma14164490

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