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Multifunctional Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles synthesized by reverse micelle method

Synthesis of Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles in reverse micelles and their multifunctional luminescence properties are presented. Using cyclohexane, Triton X-100, and n-pentanol as the oil, surfactant, and co-surfactant, respectively, crystalline nanoparticles with ~4 nm diamet...

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Autores principales: Gavrilović, Tamara V., Jovanović, Dragana J., Lojpur, Vesna, Dramićanin, Miroslav D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3936229/
https://www.ncbi.nlm.nih.gov/pubmed/24572638
http://dx.doi.org/10.1038/srep04209
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author Gavrilović, Tamara V.
Jovanović, Dragana J.
Lojpur, Vesna
Dramićanin, Miroslav D.
author_facet Gavrilović, Tamara V.
Jovanović, Dragana J.
Lojpur, Vesna
Dramićanin, Miroslav D.
author_sort Gavrilović, Tamara V.
collection PubMed
description Synthesis of Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles in reverse micelles and their multifunctional luminescence properties are presented. Using cyclohexane, Triton X-100, and n-pentanol as the oil, surfactant, and co-surfactant, respectively, crystalline nanoparticles with ~4 nm diameter are prepared at low temperatures. The particle size assessed using transmission electron microscopy is similar to the crystallite size obtained from X-ray diffraction measurements, suggesting that each particle comprises a single crystallite. Eu(3+)-doped GdVO(4) nanoparticles emit red light through downconversion upon UV excitation. Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles exhibit several functions; apart from the downconversion of UV radiation into visible green light, they act as upconvertors, transforming near-infrared excitation (980 nm) into visible green light. The ratio of green emissions from (2)H(11/2) → (2)I(15/2) and (4)S(3/2) → (4)I(15/2) transitions is temperature dependent and can be used for nanoscale temperature sensing with near-infrared excitation. The relative sensor sensitivity is 1.11%K(−1), which is among the highest sensitivities recorded for upconversion-luminescence-based thermometers.
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spelling pubmed-39362292014-03-04 Multifunctional Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles synthesized by reverse micelle method Gavrilović, Tamara V. Jovanović, Dragana J. Lojpur, Vesna Dramićanin, Miroslav D. Sci Rep Article Synthesis of Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles in reverse micelles and their multifunctional luminescence properties are presented. Using cyclohexane, Triton X-100, and n-pentanol as the oil, surfactant, and co-surfactant, respectively, crystalline nanoparticles with ~4 nm diameter are prepared at low temperatures. The particle size assessed using transmission electron microscopy is similar to the crystallite size obtained from X-ray diffraction measurements, suggesting that each particle comprises a single crystallite. Eu(3+)-doped GdVO(4) nanoparticles emit red light through downconversion upon UV excitation. Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles exhibit several functions; apart from the downconversion of UV radiation into visible green light, they act as upconvertors, transforming near-infrared excitation (980 nm) into visible green light. The ratio of green emissions from (2)H(11/2) → (2)I(15/2) and (4)S(3/2) → (4)I(15/2) transitions is temperature dependent and can be used for nanoscale temperature sensing with near-infrared excitation. The relative sensor sensitivity is 1.11%K(−1), which is among the highest sensitivities recorded for upconversion-luminescence-based thermometers. Nature Publishing Group 2014-02-27 /pmc/articles/PMC3936229/ /pubmed/24572638 http://dx.doi.org/10.1038/srep04209 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Gavrilović, Tamara V.
Jovanović, Dragana J.
Lojpur, Vesna
Dramićanin, Miroslav D.
Multifunctional Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles synthesized by reverse micelle method
title Multifunctional Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles synthesized by reverse micelle method
title_full Multifunctional Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles synthesized by reverse micelle method
title_fullStr Multifunctional Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles synthesized by reverse micelle method
title_full_unstemmed Multifunctional Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles synthesized by reverse micelle method
title_short Multifunctional Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO(4) nanoparticles synthesized by reverse micelle method
title_sort multifunctional eu(3+)- and er(3+)/yb(3+)-doped gdvo(4) nanoparticles synthesized by reverse micelle method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3936229/
https://www.ncbi.nlm.nih.gov/pubmed/24572638
http://dx.doi.org/10.1038/srep04209
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