Characterization and luminescence dynamics of MgF2:W ceramics
https://doi.org/10.32523/ejpfm.2023070404
Abstract
This study delves into the synthesis and characterization of luminescent ceramics based on tungstenactivated magnesium fluoride (MgF2) complemented with varying concentrations of lithium hydroxide (LiOH). Utilizing a distinctive sintering process conducted in an open-air milieu under robust radiation conditions, we successfully synthesized a series of tungsten-activated ceramics. Study revealed that the resultant ceramics prominently display luminescent properties, which can be excited by UV radiation in the spectrum of 200-300 nm, as well as by high-energy electron fluxes. The spectral characteristics of these ceramics, in terms of band position, half-width, and excitation spectra, are strikingly analogous to those observed in LiF crystals activated by tungsten and titanium ions. This observation led to the conclusion that luminescent centers, similar to those in LiF crystals, are formed during the ceramic synthesis.
Keywords
alkaline earth metal fluorides,
magnesium fluoride,
tungsten,
radiation synthesis,
luminescence,
photoluminescence,
kinetic decay
Supporting agencies: This research has been funded by the Science Committee of the Ministry of Education and Science of the Republic of Kazakhstan (Grant No. AP14871114) and by the Russian Science Foundation of the Russian Federation (Grant No. 23-73-00108).
About the Authors
A.V. Strelkova
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
V. M. Lisitsyn
National Research Tomsk Polytechnic University
Russian Federation
Russian Federation
Tomsk
L. A. Lisitsyna
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Tomsk
T.A. Koketai
E.A. Buketova Karaganda University
Kazakhstan
Kazakhstan
Karaganda
D. A. Mussakhanov
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
Zh.T. Karipbayev
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
A. M. Zhunusbekov
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
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Review
For citations:
Strelkova A., Lisitsyn V.M., Lisitsyna L.A., Koketai T., Mussakhanov D.A., Karipbayev Zh., Zhunusbekov A.M. Characterization and luminescence dynamics of MgF2:W ceramics. Eurasian Journal of Physics and Functional Materials. 2023;7(4):239-248. https://doi.org/10.32523/ejpfm.2023070404
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