КФУ. Карточка публикации. Impact of Bi3+ co-doping on local structure, EPR spectra and luminescence properties of Yb3+ probe ions in CeO2 nanoparticles.

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IMPACT OF BI3+ CO-DOPING ON LOCAL STRUCTURE, EPR SPECTRA AND LUMINESCENCE PROPERTIES OF YB3+ PROBE IONS IN CEO2 NANOPARTICLES.

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2025

Язык

английский

Авторы, сотрудники КФУ

Докудовская Анна Константиновна, 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

Ginkel, A. K., Morozov, O. A., Korableva, S. L., Pudovkin, M. S., Rakhmatullin, R. M., Rodionov, A. A., & Semashko, V. V. (2025). Impact of Bi3+ co-doping on local structure, EPR spectra and luminescence properties of Yb3+ probe ions in CeO2 nanoparticles. Optical Materials, 117630.

Аннотация

The impact of Bi3+ co-doping on CeO2:0.1 %Yb3+ nanoparticles was studied using EPR and luminescence spectroscopy. XRD analysis of the synthesized nanoparticle confirmed a pure fluorite structure without secondary phases. EPR spectra of Yb3+ in both undoped and Bi3+ -co-doped CeO2 nanoparticles, annealed at 600 ◦C for 4 h revealed predominantly cubic sites, indicating the remote location of charge compensators. CeO2 nanoparticles co-doped with 0.5 %Bi3+ exhibited a significant increase of trigonal sites, attributed to the proximity of hydroxyl groups near the doped rare-earth ions. Further annealing of CeO2:0.1 %Yb3+ and CeO2:0.1 %Yb3+,0.5 %Bi3+ nanoparticles at 1000 ◦C for 2 h caused oxygen vacancies to migrate to positions adjacent to Yb3+ ions, resulting in the appearance of trigonal sites due to charge compensating oxygen vacancies. The number of trigonal sites associated with hydroxyl groups in CeO2:0.1 %Yb3+,0.5 %Bi3+ nanoparticles significantly decreased after annealing at 1000 ◦C, a finding confirmed by FTIR measurements. Luminescence spectroscopy identified emission lines corresponding to high- and low-symmetry sites of Yb3+ions, consistent with the EPR results. Additionally, luminescence measurements demonstrated that Bi3+ co-doping changes Yb3+ luminescence in CeO2 nanoparticles. The study indicates that Bi3+ incorporation alters the local environment of Yb3+ ions, thereby influencing their optical and structural properties.

Ключевые слова

CeO2 nanoparticles Oxygen vacancies Luminescence EPR spectroscopy

Название журнала

Optical Materials

URL

http://doi.org/10.1016/j.optmat.2025.117630

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https://repository.kpfu.ru/?p_id=319997

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Докудовская Анна Константиновна	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	2025-01-01T00:00:00Z	ru_RU
dc.date.available	2025-01-01T00:00:00Z	ru_RU
dc.date.issued	2025	ru_RU
dc.identifier.citation	Ginkel, A. K., Morozov, O. A., Korableva, S. L., Pudovkin, M. S., Rakhmatullin, R. M., Rodionov, A. A., & Semashko, V. V. (2025). Impact of Bi3+ co-doping on local structure, EPR spectra and luminescence properties of Yb3+ probe ions in CeO2 nanoparticles. Optical Materials, 117630.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=319997	ru_RU
dc.description.abstract	Optical Materials	ru_RU
dc.description.abstract	The impact of Bi3+ co-doping on CeO2:0.1 %Yb3+ nanoparticles was studied using EPR and luminescence spectroscopy. XRD analysis of the synthesized nanoparticle confirmed a pure fluorite structure without secondary phases. EPR spectra of Yb3+ in both undoped and Bi3+ -co-doped CeO2 nanoparticles, annealed at 600 ◦C for 4 h revealed predominantly cubic sites, indicating the remote location of charge compensators. CeO2 nanoparticles co-doped with 0.5 %Bi3+ exhibited a significant increase of trigonal sites, attributed to the proximity of hydroxyl groups near the doped rare-earth ions. Further annealing of CeO2:0.1 %Yb3+ and CeO2:0.1 %Yb3+,0.5 %Bi3+ nanoparticles at 1000 ◦C for 2 h caused oxygen vacancies to migrate to positions adjacent to Yb3+ ions, resulting in the appearance of trigonal sites due to charge compensating oxygen vacancies. The number of trigonal sites associated with hydroxyl groups in CeO2:0.1 %Yb3+,0.5 %Bi3+ nanoparticles significantly decreased after annealing at 1000 ◦C, a finding confirmed by FTIR measurements. Luminescence spectroscopy identified emission lines corresponding to high- and low-symmetry sites of Yb3+ions, consistent with the EPR results. Additionally, luminescence measurements demonstrated that Bi3+ co-doping changes Yb3+ luminescence in CeO2 nanoparticles. The study indicates that Bi3+ incorporation alters the local environment of Yb3+ ions, thereby influencing their optical and structural properties.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject		ru_RU
dc.title	Impact of Bi3+ co-doping on local structure, EPR spectra and luminescence properties of Yb3+ probe ions in CeO2 nanoparticles.	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU