Sensitization, energy transfer and infra-red emission decay modulation in Yb3+-doped NaYF4 nanoparticles with visible light through a perfluoroanthraquinone chromophore

Abstract Infra-red emission (980 nm) of sub 10 nm Yb3+-doped NaYF4 nanoparticles has been sensitized through the excitation of 2-hydroxyperfluoroanthraquinone chromophore (1,2,3,4,5,6,7-heptafluro-8-hydroxyanthracene-9,10-dione) functionalizing the nanoparticle surface. The sensitization is achieved...

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Autores principales:	Haizhou Lu, Yu Peng, Huanqing Ye, Xianjin Cui, Jianxu Hu, Hang Gu, Andrei N. Khlobystov, Mark A. Green, Philip J. Blower, Peter B. Wyatt, William P. Gillin, Ignacio Hernández
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/600b39848f2a44e18cbb4d0dceb223a3
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spelling	oai:doaj.org-article:600b39848f2a44e18cbb4d0dceb223a32021-12-02T15:06:25ZSensitization, energy transfer and infra-red emission decay modulation in Yb3+-doped NaYF4 nanoparticles with visible light through a perfluoroanthraquinone chromophore10.1038/s41598-017-05350-92045-2322https://doaj.org/article/600b39848f2a44e18cbb4d0dceb223a32017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05350-9https://doaj.org/toc/2045-2322Abstract Infra-red emission (980 nm) of sub 10 nm Yb3+-doped NaYF4 nanoparticles has been sensitized through the excitation of 2-hydroxyperfluoroanthraquinone chromophore (1,2,3,4,5,6,7-heptafluro-8-hydroxyanthracene-9,10-dione) functionalizing the nanoparticle surface. The sensitization is achieved with a broad range of visible light excitation (400–600 nm). The overall near infra-red (NIR) emission intensity of Yb3+ ions is increased by a factor 300 as a result of the broad and strong absorption of the chromophore compared with ytterbium’s intrinsic absorption. Besides the Yb3+ NIR emission, the hybrid composite shows organic chromophore-based visible emission in the orange-red region of the spectrum. We observe the energy migration process from the sensitized Yb3+ ions at the surface to those in the core of the particle using time-resolved optical spectroscopy. This highlights that the local environments for emitting Yb3+ ions at the surface and center of the nanoparticle are not identical, which causes important differences in the NIR emission dynamics. Based on the understanding of these processes, we suggest a simple strategy to control and modulate the decay time of the functionalized Yb3+-doped nanoparticles over a relatively large range by changing physical or chemical parameters in this model system.Haizhou LuYu PengHuanqing YeXianjin CuiJianxu HuHang GuAndrei N. KhlobystovMark A. GreenPhilip J. BlowerPeter B. WyattWilliam P. GillinIgnacio HernándezNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Haizhou Lu Yu Peng Huanqing Ye Xianjin Cui Jianxu Hu Hang Gu Andrei N. Khlobystov Mark A. Green Philip J. Blower Peter B. Wyatt William P. Gillin Ignacio Hernández Sensitization, energy transfer and infra-red emission decay modulation in Yb3+-doped NaYF4 nanoparticles with visible light through a perfluoroanthraquinone chromophore
description	Abstract Infra-red emission (980 nm) of sub 10 nm Yb3+-doped NaYF4 nanoparticles has been sensitized through the excitation of 2-hydroxyperfluoroanthraquinone chromophore (1,2,3,4,5,6,7-heptafluro-8-hydroxyanthracene-9,10-dione) functionalizing the nanoparticle surface. The sensitization is achieved with a broad range of visible light excitation (400–600 nm). The overall near infra-red (NIR) emission intensity of Yb3+ ions is increased by a factor 300 as a result of the broad and strong absorption of the chromophore compared with ytterbium’s intrinsic absorption. Besides the Yb3+ NIR emission, the hybrid composite shows organic chromophore-based visible emission in the orange-red region of the spectrum. We observe the energy migration process from the sensitized Yb3+ ions at the surface to those in the core of the particle using time-resolved optical spectroscopy. This highlights that the local environments for emitting Yb3+ ions at the surface and center of the nanoparticle are not identical, which causes important differences in the NIR emission dynamics. Based on the understanding of these processes, we suggest a simple strategy to control and modulate the decay time of the functionalized Yb3+-doped nanoparticles over a relatively large range by changing physical or chemical parameters in this model system.
format	article
author	Haizhou Lu Yu Peng Huanqing Ye Xianjin Cui Jianxu Hu Hang Gu Andrei N. Khlobystov Mark A. Green Philip J. Blower Peter B. Wyatt William P. Gillin Ignacio Hernández
author_facet	Haizhou Lu Yu Peng Huanqing Ye Xianjin Cui Jianxu Hu Hang Gu Andrei N. Khlobystov Mark A. Green Philip J. Blower Peter B. Wyatt William P. Gillin Ignacio Hernández
author_sort	Haizhou Lu
title	Sensitization, energy transfer and infra-red emission decay modulation in Yb3+-doped NaYF4 nanoparticles with visible light through a perfluoroanthraquinone chromophore
title_short	Sensitization, energy transfer and infra-red emission decay modulation in Yb3+-doped NaYF4 nanoparticles with visible light through a perfluoroanthraquinone chromophore
title_full	Sensitization, energy transfer and infra-red emission decay modulation in Yb3+-doped NaYF4 nanoparticles with visible light through a perfluoroanthraquinone chromophore
title_fullStr	Sensitization, energy transfer and infra-red emission decay modulation in Yb3+-doped NaYF4 nanoparticles with visible light through a perfluoroanthraquinone chromophore
title_full_unstemmed	Sensitization, energy transfer and infra-red emission decay modulation in Yb3+-doped NaYF4 nanoparticles with visible light through a perfluoroanthraquinone chromophore
title_sort	sensitization, energy transfer and infra-red emission decay modulation in yb3+-doped nayf4 nanoparticles with visible light through a perfluoroanthraquinone chromophore
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/600b39848f2a44e18cbb4d0dceb223a3
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Sensitization, energy transfer and infra-red emission decay modulation in Yb3+-doped NaYF4 nanoparticles with visible light through a perfluoroanthraquinone chromophore

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