Tunable emission and energy transfer of B2O3–Bi2O3–AlF3 glass system doped with Eu3+/Dy3+

Karolina Milewska; Michał Edmund Maciejewski; Michal Žitňan; José Joaquín Velázquez; Dušan Galusek; Wojciech Sadowski; Barbara Kościelska

doi:10.1016/j.jlumin.2024.120440

Tunable emission and energy transfer of B2O3–Bi2O3–AlF3 glass system doped with Eu3+/Dy3+

Abstract

The structure and luminescent properties of the B2O3–Bi2O–AlF3 glass system doped with Eu3+/Dy3+ ions in different molar ratios were studied. A series of glasses were synthesized by the conventional melt quenching technique. Glass transition and crystallization temperatures were examined by Differential Thermal Analysis (DTA) measurements. The amorphous character of the prepared samples was confirmed by the X-ray diffraction (XRD) method. Raman and FTIR spectra were collected and deconvoluted to investigate the glass microstructure. Luminescence spectra revealed that the added rare-earth ions can be excited by a single wavelength. The emitted color can be tuned by changing the ratios of the Eu3+/Dy3+ ions and the excitation wavelength. Furthermore, the influence of the addition of AlF3 on the luminescence and decay times was investigated. In the glasses with 10 mol% AlF3 an enhancement of the emission and excitation spectra was detected. The energy transfer analysis confirms the energy transfer between Eu3+ and Dy3+ ions in the glass matrix. Additionally, the results of this study indicate that the B2O3–Bi2O–AlF3 glasses doped with Eu3+ and Dy3+ can be used as a color tunable phosphor.

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Authors (7)

Karolina Milewska
Michał Edmund Maciejewski
Michal Žitňan Dr
- Alexander Dubček University of Trenčín
José Joaquín Velázquez
- Alexander Dubček University of Trenčín
Dušan Galusek
- Alexander Dubček University of Trenčín
Wojciech Sadowski prof. dr hab. inż.
Barbara Kościelska prof. dr hab. inż.

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Articles

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artykuły w czasopismach

Published in:

JOURNAL OF LUMINESCENCE no. 269,
ISSN: 0022-2313

Language:

English

Publication year:

2024

Bibliographic description:

Milewska K., Maciejewski M., Žitňan M., Velázquez J. J., Galusek D., Sadowski W., Kościelska B.: Tunable emission and energy transfer of B2O3–Bi2O3–AlF3 glass system doped with Eu3+/Dy3+// JOURNAL OF LUMINESCENCE -, (2024),

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