A1 Refereed original research article in a scientific journal
Synthesis and characterization of core-shell europium(III)-silica nanoparticles
Authors: Härmä H., Graf C., Hänninen P.
Publication year: 2008
Journal:: Journal of Nanoparticle Research
Journal name in source: Journal of Nanoparticle Research
Volume: 10
Issue: 7
First page : 1221
Last page: 1224
Number of pages: 4
ISSN: 1388-0764
DOI: https://doi.org/10.1007/s11051-008-9380-5
Web address : http://api.elsevier.com/content/abstract/scopus_id:48349096425
Abstract
Luminescent core-shell europium(III)-silica nanoparticles were prepared using europium(III) chelate core structure and polyvinylpyrrolidone synthesis strategy for silica shell. Europium(III):naphtoyltrifluoroacetone: trioctylphosphineoxide complex was spontaneously agglomerated from organic solvent to water. Polyvinylpyrrolidone was adsorbed onto the core structure and stable silica shell was synthesized using tetraethylorthosilicate. Nanosized particles with a diameter of 71 ± 5 nm and 11 nm shell thickness were obtained with fluorescence decay rate of 517 μs and excitation and emission wavelengths of 334 and 614 nm, respectively. © 2008 Springer Science+Business Media B.V.
Luminescent core-shell europium(III)-silica nanoparticles were prepared using europium(III) chelate core structure and polyvinylpyrrolidone synthesis strategy for silica shell. Europium(III):naphtoyltrifluoroacetone: trioctylphosphineoxide complex was spontaneously agglomerated from organic solvent to water. Polyvinylpyrrolidone was adsorbed onto the core structure and stable silica shell was synthesized using tetraethylorthosilicate. Nanosized particles with a diameter of 71 ± 5 nm and 11 nm shell thickness were obtained with fluorescence decay rate of 517 μs and excitation and emission wavelengths of 334 and 614 nm, respectively. © 2008 Springer Science+Business Media B.V.
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