Comparison of Eu(NO3)3 and Eu(acac)3 precursors for doping luminescent silica nanoparticles

F. Enrichi; R. Riccò; P. Scopece; A. Parma; A. R. Mazaheri; P. Riello; A. Benedetti

doi:10.1007/s11051-009-9756-1

Comparison of Eu(NO₃)₃ and Eu(acac)₃ precursors for doping luminescent silica nanoparticles

F. Enrichi^*, R. Riccò, P. Scopece, A. Parma, A. R. Mazaheri, P. Riello, A. Benedetti

^*Corresponding author for this work

Research output: Contribution to journal › Article

Abstract

In this study, we report the comparison between Eu³⁺-doped silica nanoparticles synthesized by Stöber method using Eu(NO ₃)₃ or Eu(acac)₃ as precursors. The impact of different europium species on the properties of the final silica nanospheres is investigated in details in terms of size, morphology, reachable doping amount, and luminescence efficiency. Moreover, the results obtained for different thermal treatments are presented and discussed. It is shown that the organic complex modify the silica growing process, leading to bigger and irregular nanoparticles (500-800 nm) with respect to the perfectly spherical ones (400 nm) obtained by the nitrate salt, but their luminescence intensity and lifetime is significantly higher when 800-900 °C annealing is performed.

Original language	English
Pages (from-to)	1925-1931
Number of pages	7
Journal	Journal of Nanoparticle Research
Volume	12
Issue number	5
DOIs	https://doi.org/10.1007/s11051-009-9756-1
Publication status	Published - Jun 2010
Externally published	Yes

Keywords

Biomarker
Europium
Luminescence
Nanoparticle
Stöber
Synthesis

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Modelling and Simulation
Chemistry(all)
Materials Science(all)
Bioengineering

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10.1007/s11051-009-9756-1

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title = "Comparison of Eu(NO3)3 and Eu(acac)3 precursors for doping luminescent silica nanoparticles",

abstract = "In this study, we report the comparison between Eu3+-doped silica nanoparticles synthesized by St{\"o}ber method using Eu(NO 3)3 or Eu(acac)3 as precursors. The impact of different europium species on the properties of the final silica nanospheres is investigated in details in terms of size, morphology, reachable doping amount, and luminescence efficiency. Moreover, the results obtained for different thermal treatments are presented and discussed. It is shown that the organic complex modify the silica growing process, leading to bigger and irregular nanoparticles (500-800 nm) with respect to the perfectly spherical ones (400 nm) obtained by the nitrate salt, but their luminescence intensity and lifetime is significantly higher when 800-900 °C annealing is performed.",

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author = "F. Enrichi and R. Ricc{\`o} and P. Scopece and A. Parma and Mazaheri, {A. R.} and P. Riello and A. Benedetti",

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AU - Enrichi, F.

AU - Riccò, R.

AU - Scopece, P.

AU - Parma, A.

AU - Mazaheri, A. R.

AU - Riello, P.

AU - Benedetti, A.

PY - 2010/6

Y1 - 2010/6

N2 - In this study, we report the comparison between Eu3+-doped silica nanoparticles synthesized by Stöber method using Eu(NO 3)3 or Eu(acac)3 as precursors. The impact of different europium species on the properties of the final silica nanospheres is investigated in details in terms of size, morphology, reachable doping amount, and luminescence efficiency. Moreover, the results obtained for different thermal treatments are presented and discussed. It is shown that the organic complex modify the silica growing process, leading to bigger and irregular nanoparticles (500-800 nm) with respect to the perfectly spherical ones (400 nm) obtained by the nitrate salt, but their luminescence intensity and lifetime is significantly higher when 800-900 °C annealing is performed.

AB - In this study, we report the comparison between Eu3+-doped silica nanoparticles synthesized by Stöber method using Eu(NO 3)3 or Eu(acac)3 as precursors. The impact of different europium species on the properties of the final silica nanospheres is investigated in details in terms of size, morphology, reachable doping amount, and luminescence efficiency. Moreover, the results obtained for different thermal treatments are presented and discussed. It is shown that the organic complex modify the silica growing process, leading to bigger and irregular nanoparticles (500-800 nm) with respect to the perfectly spherical ones (400 nm) obtained by the nitrate salt, but their luminescence intensity and lifetime is significantly higher when 800-900 °C annealing is performed.

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KW - Europium

KW - Luminescence

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