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Study of energy transfer processes between the rare earth ions in tri-doped upconversion nanoparticles NaGdF4:Yb-Er-Tm and NaGdF4:Yb-Er-Ho

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dc.contributor.authorProydakova, V. Yu.
dc.contributor.authorRomanishkin, I. D.
dc.contributor.authorKuznetsov, S. V.
dc.contributor.authorPominova, D. V.
dc.contributor.authorGrachev, P. V.
dc.contributor.authorRyabova, A. V.
dc.contributor.authorПоминова, Дарья Вячеславовна
dc.contributor.authorРябова, Анастасия Владимировна
dc.date.accessioned2024-12-25T14:31:42Z
dc.date.available2024-12-25T14:31:42Z
dc.date.issued2022
dc.description.abstract© 2022 SPIE.Study of energy transfer processes between the rare earth ions in NaGdF4 nanoparticles tri-doped with rare earth ions Yb3+, Er3+ and Ho3+ or Tm3+ was carried out. The luminescence spectra in short-wave infrared and visible ranges were investigated. It was shown that Er3+ → Ho3+ energy transfer leads to Ho3+ luminescence increase. Both Er3+ and Ho3+ luminescence peaks were observed in short-wave infrared range. For Er3+ and Tm3+ co-doped nanoparticles it was hard to separate luminescence peaks in SWIR. However, both Er3+ and Tm3+ luminescence peaks were observed in visible range. We attribute this effects to Tm3+ → Er3+ energy transfer which occurs due to overlap of Er3+ and Tm3+ luminescence bands in short-wave infrared range which leads to Tm3+ luminescence decrease. This hypothesis was confirmed by study of β-NaGdF4 tri-doped with Yb3+, Er3+ and Tm3+ luminescence spectra during heating. The intensity of Tm3+ luminescence increased during heating due to non-resonant nature of Yb3+ →Tm3+ energy transfer and the shape of spectra changed.
dc.identifier.citationStudy of energy transfer processes between the rare earth ions in tri-doped upconversion nanoparticles NaGdF4:Yb-Er-Tm and NaGdF4:Yb-Er-Ho / Proydakova, V.Yu. [et al.] // Progress in Biomedical Optics and Imaging - Proceedings of SPIE. - 2022. - 12194. - 10.1117/12.2626223
dc.identifier.doi10.1117/12.2626223
dc.identifier.urihttps://www.doi.org/10.1117/12.2626223
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85132033800&origin=resultslist
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/27999
dc.relation.ispartofProgress in Biomedical Optics and Imaging - Proceedings of SPIE
dc.titleStudy of energy transfer processes between the rare earth ions in tri-doped upconversion nanoparticles NaGdF4:Yb-Er-Tm and NaGdF4:Yb-Er-Ho
dc.typeConference Paper
dspace.entity.typePublication
oaire.citation.volume12194
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