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 | |
| Publication status | Published - Jun 2010 |
| Externally published | Yes |
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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
Cite this
Comparison of Eu(NO3)3 and Eu(acac)3 precursors for doping luminescent silica nanoparticles. / Enrichi, F.; Riccò, R.; Scopece, P.; Parma, A.; Mazaheri, A. R.; Riello, P.; Benedetti, A.
In: Journal of Nanoparticle Research, Vol. 12, No. 5, 06.2010, p. 1925-1931.Research output: Contribution to journal › Article › Research › peer-review
}
TY - JOUR
T1 - Comparison of Eu(NO3)3 and Eu(acac)3 precursors for doping luminescent silica nanoparticles
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.
KW - Biomarker
KW - Europium
KW - Luminescence
KW - Nanoparticle
KW - Stöber
KW - Synthesis
UR - http://www.scopus.com/inward/record.url?scp=77955088540&partnerID=8YFLogxK
U2 - 10.1007/s11051-009-9756-1
DO - 10.1007/s11051-009-9756-1
M3 - Article
VL - 12
SP - 1925
EP - 1931
JO - Journal of Nanoparticle Research
JF - Journal of Nanoparticle Research
SN - 1388-0764
IS - 5
ER -