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Volume 30
Issue 11
10.3390/molecules30112331
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Article

Multisite Fe3+ Luminescent Centers in the LiGaO2:Fe Nanocrystalline Phosphor

by
Ajeesh Kumar Somakumar
1,*,
Ivo Romet
2,
Agnieszka Grabias
3,
Marcin Kruk
4,
Shusaku Hayama
5,
Damian Wlodarczyk
1,
Justyna Barzowska
6,
Yadhu Krishnan Edathumkandy
1,
Eduard Feldbach
2,
Puxian Xiong
7,
Yaroslav Zhydachevskyy
1,
Monika Trzaskowska
4,
Hanka Przybylinska
1 and
Andrzej Suchocki
1,*
1
Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, 02-668 Warsaw, Poland
2
Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411 Tartu, Estonia
3
Łukasiewicz Research Network—Institute of Microelectronics and Photonics, Aleja Lotników 32/46, 02-668 Warsaw, Poland
4
Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, Nowoursynowska 159c, 02-776 Warsaw, Poland
5
Diamond Light Source, Harwell Science & Innovation Campus, Didcot OX11 DE, UK
6
Institute of Experimental Physics, Faculty of Mathematics, Physics and Informatics, University of Gdansk, Wita Stwosza 57, 80-952 Gdańsk, Poland
7
Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong 999077, China
*
Authors to whom correspondence should be addressed.
Molecules 2025, 30(11), 2331; https://doi.org/10.3390/molecules30112331
Submission received: 20 March 2025 / Revised: 4 May 2025 / Accepted: 19 May 2025 / Published: 27 May 2025
(This article belongs to the Special Issue Chemistry Innovatives in Perovskite Based Materials)
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Abstract

An extensive experimental study of trivalent iron (Fe3+) ions in orthorhombic lithium gallate nanocrystals was undertaken. Various spectroscopic methods, such as Raman spectroscopy, extended X-ray absorption fine structure, the Mössbauer effect, electron paramagnetic resonance, photoluminescence, thermoluminescence, and cathodoluminescence were used to investigate the synthesized phosphor. This study revealed the existence of multiple Fe3+ sites, out of which the tetrahedral sites are preferentially occupied. Extensive optical studies showed that the Fe3+ doped lithium gallate phosphor is a promising candidate for various luminescence and thermoluminescence-related applications in the near-infrared regime.
Keywords: gallates; multisites; iron doping; luminescence gallates; multisites; iron doping; luminescence
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MDPI and ACS Style

Somakumar, A.K.; Romet, I.; Grabias, A.; Kruk, M.; Hayama, S.; Wlodarczyk, D.; Barzowska, J.; Edathumkandy, Y.K.; Feldbach, E.; Xiong, P.; et al. Multisite Fe3+ Luminescent Centers in the LiGaO2:Fe Nanocrystalline Phosphor. Molecules 2025, 30, 2331. https://doi.org/10.3390/molecules30112331

AMA Style

Somakumar AK, Romet I, Grabias A, Kruk M, Hayama S, Wlodarczyk D, Barzowska J, Edathumkandy YK, Feldbach E, Xiong P, et al. Multisite Fe3+ Luminescent Centers in the LiGaO2:Fe Nanocrystalline Phosphor. Molecules. 2025; 30(11):2331. https://doi.org/10.3390/molecules30112331

Chicago/Turabian Style

Somakumar, Ajeesh Kumar, Ivo Romet, Agnieszka Grabias, Marcin Kruk, Shusaku Hayama, Damian Wlodarczyk, Justyna Barzowska, Yadhu Krishnan Edathumkandy, Eduard Feldbach, Puxian Xiong, and et al. 2025. "Multisite Fe3+ Luminescent Centers in the LiGaO2:Fe Nanocrystalline Phosphor" Molecules 30, no. 11: 2331. https://doi.org/10.3390/molecules30112331

APA Style

Somakumar, A. K., Romet, I., Grabias, A., Kruk, M., Hayama, S., Wlodarczyk, D., Barzowska, J., Edathumkandy, Y. K., Feldbach, E., Xiong, P., Zhydachevskyy, Y., Trzaskowska, M., Przybylinska, H., & Suchocki, A. (2025). Multisite Fe3+ Luminescent Centers in the LiGaO2:Fe Nanocrystalline Phosphor. Molecules, 30(11), 2331. https://doi.org/10.3390/molecules30112331

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