КФУ. Карточка публикации. EPR and optical study of erbium-doped CeO2 and CeO2 / CeF3 nanoparticles

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EPR AND OPTICAL STUDY OF ERBIUM-DOPED CEO2 AND CEO2 / CEF3 NANOPARTICLES

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2024

Язык

английский

Авторы, сотрудники КФУ

Киямов Айрат Газинурович, автор

Кораблева Стелла Леонидовна, автор

Морозов Олег Александрович, автор

Пудовкин Максим Сергеевич, автор

Рахматуллин Рафаиль Мансурович, автор

Родионов Александр Александрович, автор

Семашко Вадим Владимирович, автор

Библиографическое описание на языке оригинала

M.S. Pudovkin, O.A. Morozov, S.L. Korableva, R.M. Rakhmatullin, V.V. Semashko, A.K. Ginkel, A.A. Rodionov, A.G. Kiiamov, EPR and optical study of erbium-doped CeO2 and CeO2 / CeF3 nanoparticles//Ceramics International, 50(6), 9263–9269 (2024)

Аннотация

Here, the facile dry synthesis of composite CeO2/CeF3 nanoparticles doped with Er3+ probe ions using ammonium bifluoride (NH4HF2) is reported. This method allows synthesizing composite nanoparticles with different ratio of СеО2 and CeF3. The structural properties of the composite nanoparticles were studied using XRD, SEM, and TEM techniques, which confirmed the formation of composite CeO2/CeF3 nanoparticles. The luminescence spectra show that the intensity of the Ce3+ peak increases after fluorination procedure, revealing the fact that the amount of Ce3+ is increased. In particular, the total 4f-4f luminescence intensity of CeO2/CeF3:Er3+(0.1 at.%) nanoparticles is 3.5 time higher compared to CeO2:Er3+(0.1 at.%) ones under both UV or resonant pumping. Probably it can be associated with the increased concentration of trivalent rare-earth ions in a cubic-distorted environment. The same tendency is observed for the excitation spectra. EPR measurements showed that fluorination of CeO2 nanoparticles doped with different concentration of Er3+ ions leads to the formation of trigonal sites in ceria nanoparticles.

Ключевые слова

CeO2, CeF3, Nanocomposites, EPR

Название журнала

Ceramics International

URL

https://www.sciencedirect.com/science/article/abs/pii/S0272884223041767

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https://repository.kpfu.ru/?p_id=304608

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Киямов Айрат Газинурович	ru_RU
dc.contributor.author	Кораблева Стелла Леонидовна	ru_RU
dc.contributor.author	Морозов Олег Александрович	ru_RU
dc.contributor.author	Пудовкин Максим Сергеевич	ru_RU
dc.contributor.author	Рахматуллин Рафаиль Мансурович	ru_RU
dc.contributor.author	Родионов Александр Александрович	ru_RU
dc.contributor.author	Семашко Вадим Владимирович	ru_RU
dc.date.accessioned	2024-01-01T00:00:00Z	ru_RU
dc.date.available	2024-01-01T00:00:00Z	ru_RU
dc.date.issued	2024	ru_RU
dc.identifier.citation	M.S. Pudovkin, O.A. Morozov, S.L. Korableva, R.M. Rakhmatullin, V.V. Semashko, A.K. Ginkel, A.A. Rodionov, A.G. Kiiamov, EPR and optical study of erbium-doped CeO2 and CeO2 / CeF3 nanoparticles//Ceramics International, 50(6), 9263–9269 (2024)	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=304608	ru_RU
dc.description.abstract	Ceramics International	ru_RU
dc.description.abstract	Here, the facile dry synthesis of composite CeO2/CeF3 nanoparticles doped with Er3+ probe ions using ammonium bifluoride (NH4HF2) is reported. This method allows synthesizing composite nanoparticles with different ratio of СеО2 and CeF3. The structural properties of the composite nanoparticles were studied using XRD, SEM, and TEM techniques, which confirmed the formation of composite CeO2/CeF3 nanoparticles. The luminescence spectra show that the intensity of the Ce3+ peak increases after fluorination procedure, revealing the fact that the amount of Ce3+ is increased. In particular, the total 4f-4f luminescence intensity of CeO2/CeF3:Er3+(0.1 at.%) nanoparticles is 3.5 time higher compared to CeO2:Er3+(0.1 at.%) ones under both UV or resonant pumping. Probably it can be associated with the increased concentration of trivalent rare-earth ions in a cubic-distorted environment. The same tendency is observed for the excitation spectra. EPR measurements showed that fluorination of CeO2 nanoparticles doped with different concentration of Er3+ ions leads to the formation of trigonal sites in ceria nanoparticles.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	CeO2	ru_RU
dc.subject	CeF3	ru_RU
dc.subject	Nanocomposites	ru_RU
dc.subject	EPR	ru_RU
dc.title	EPR and optical study of erbium-doped CeO2 and CeO2 / CeF3 nanoparticles	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU