Effect of SiO2 Shell on Photoluminescence Enhancement of Eu3+ Doped Nanophosphor Based on Monoclinic Y2O3 Full article
| Journal |
Journal of Alloys and Compounds
ISSN: 0925-8388 , E-ISSN: 1873-4669 |
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| Output data | Year: 2023, Volume: 966, Article number : 171566, Pages count : 6 DOI: 10.1016/j.jallcom.2023.171566 | ||||||
| Tags | Core-shell; Laser synthesis; Monoclinic Y2O3; Silica; Eu3+ luminescence; Nanophosphor; Quantum yield | ||||||
| Authors |
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| Affiliations |
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Funding (5)
| 1 | Russian Science Foundation | 22-73-00106 |
| 2 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0011 |
| 3 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0007 |
| 4 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0010 |
| 5 | Ministry of Science and Higher Education of the Russian Federation | FWUZ-2021-0005 (121031700313-8) |
Abstract:
Surface SiO2 coating strategy was used to enhance the photoluminescent properties of Eu3+ doped nanophosphor based on monoclinic Y2O3. Laser-synthesized m-Y2O3:Eu3+ spherical nanoparticles with high crystallinity and diameter of ca. 18 nm were used as a core for the preparation of m-Y2O3:Eu3+@SiO2 core-shell structures. According to HRTEM and HAADF-STEM data, a thin SiO2 shell uniformly encapsulated the crystal core with a thickness of about 1.5 nm. The SiO2 shell increases the absolute photoluminescence quantum yield of Eu3+ at λ = 395 nm excitation from 14 % to 68 %. To the best of our knowledge, the obtained quantum yield exceeds the known values for Eu3+ doped oxide-based nanophosphors and is comparable to those of some other commercial red microphosphors. The SiO2 coating was shown to reduce the luminescence quenching effect associated with the annealing-induced migration of Eu3+ from the bulk to the surface of nanoparticles. The obtained results demonstrate that m-Y2O3:Eu3+@SiO2 core-shell nanoparticles with intense red luminescence have significant potential for use in LEDs, high resolution displays, bioimaging technologies and in other solid-state lighting applications.
Cite:
Kostyukov A.I.
, Shuvarakova E.I.
, Nashivochnikov A.A.
, Rakhmanova M.I.
, Cherepanova S.V.
, Ishchenko A.V.
, Bedilo A.F.
Effect of SiO2 Shell on Photoluminescence Enhancement of Eu3+ Doped Nanophosphor Based on Monoclinic Y2O3
Journal of Alloys and Compounds. 2023. V.966. 171566 :1-6. DOI: 10.1016/j.jallcom.2023.171566 WOS Scopus РИНЦ AN OpenAlex
Effect of SiO2 Shell on Photoluminescence Enhancement of Eu3+ Doped Nanophosphor Based on Monoclinic Y2O3
Journal of Alloys and Compounds. 2023. V.966. 171566 :1-6. DOI: 10.1016/j.jallcom.2023.171566 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Mar 23, 2023 |
| Accepted: | Jul 28, 2023 |
| Published online: | Jul 29, 2023 |
| Published print: | Dec 1, 2023 |
Identifiers:
| Web of science: | WOS:001051677200001 |
| Scopus: | 2-s2.0-85166182266 |
| Elibrary: | 54368719 |
| Chemical Abstracts: | 2023:1606274 |
| OpenAlex: | W4385382717 |