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Directed growth of nanoarchitected hybrid phosphor particles synthesized at low temperature

Authorized Users Only
2014
Authors
Rabanal, Maria Eugenia
Barroso, Ignacio
Gómez-Villalba, Luz Stella
Mančić, Lidija
Milošević, Olivera
Article (Published version)
Metadata
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Abstract
Sub-micronic particles are of considerable interest for a wide variety of applications, such as catalyst or optical ceramics, due to their unique properties determined by size, composition and structure. In this work, we have reported a simple, rapid, single-step aerosol processing for the continuous synthesis of nanostructured particles having homogeneous composition and narrow size distributions, good crystallinity and fluorescence response. This paper presents the synthesis, optimization and characterization of hybrid Ag@Y2O3:Eu (9 at.% Eu3+) phosphor particles by means of spray pyrolysis method from water solutions of common nitrates precursors. The effect of silver concentration on particle structure, morphology and functional properties was specially evaluated. The as-prepared samples were additionally heated from 800 to 1200 °C/12 h under constant argon flow to avoid the silver oxidation. It was evident the cubic phase with Ia-3 symmetry as the principal one in all as-prepared a...nd thermally treated samples. For the case high silver nitrate concentrations in precursor solutions a minority crystalline phase having Fm3m symmetry was identified. The luminescence emission spectra have been taken after excitation at 235 nm wavelength. It is evident the increase in the emission caused by the presence of metallic silver nanoparticles onto Y2O3:Eu3+ particle surface. It was also determined the silver concentration influence on the fluorescence response.

Keywords:
yttrium oxide / europium ions / Ag nanoparticles / spray pyrolysis / luminescence
Source:
Advanced Powder Technology, 2014, 25, 5, 1442-1448
Publisher:
  • Elsevier
Projects:
  • Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology (RS-172035)
  • G.D. of Universities and Research, Madrid Regional Government, Spain, Advanced Structural Materials Program - ESTRUMAT (S2009/MAT-1585)
  • Interministerial Commission for Science and Technology (CICYT), Spain, Project MAT2010-19837-C06-05

DOI: 10.1016/j.apt.2014.03.006

ISSN: 0921-8831

WoS: 000343805800006

Scopus: 2-s2.0-84908029943
[ Google Scholar ]
3
3
URI
http://dais.sanu.ac.rs/123456789/661
Collections
  • ITN SANU - Opšta kolekcija / ITS SASA - General collection
Institution
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - JOUR
AU  - Rabanal, Maria Eugenia
AU  - Barroso, Ignacio
AU  - Gómez-Villalba, Luz Stella
AU  - Mančić, Lidija
AU  - Milošević, Olivera
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/661
AB  - Sub-micronic particles are of considerable interest for a wide variety of applications, such as catalyst or optical ceramics, due to their unique properties determined by size, composition and structure. In this work, we have reported a simple, rapid, single-step aerosol processing for the continuous synthesis of nanostructured particles having homogeneous composition and narrow size distributions, good crystallinity and fluorescence response. This paper presents the synthesis, optimization and characterization of hybrid Ag@Y2O3:Eu (9 at.% Eu3+) phosphor particles by means of spray pyrolysis method from water solutions of common nitrates precursors. The effect of silver concentration on particle structure, morphology and functional properties was specially evaluated. The as-prepared samples were additionally heated from 800 to 1200 °C/12 h under constant argon flow to avoid the silver oxidation. It was evident the cubic phase with Ia-3 symmetry as the principal one in all as-prepared and thermally treated samples. For the case high silver nitrate concentrations in precursor solutions a minority crystalline phase having Fm3m symmetry was identified. The luminescence emission spectra have been taken after excitation at 235 nm wavelength. It is evident the increase in the emission caused by the presence of metallic silver nanoparticles onto Y2O3:Eu3+ particle surface. It was also determined the silver concentration influence on the fluorescence response.
PB  - Elsevier
T2  - Advanced Powder Technology
T1  - Directed growth of nanoarchitected hybrid phosphor particles synthesized at low temperature
SP  - 1442
EP  - 1448
VL  - 25
IS  - 5
DO  - 10.1016/j.apt.2014.03.006
ER  - 
@article{
author = "Rabanal, Maria Eugenia and Barroso, Ignacio and Gómez-Villalba, Luz Stella and Mančić, Lidija and Milošević, Olivera",
year = "2014",
url = "http://dais.sanu.ac.rs/123456789/661",
abstract = "Sub-micronic particles are of considerable interest for a wide variety of applications, such as catalyst or optical ceramics, due to their unique properties determined by size, composition and structure. In this work, we have reported a simple, rapid, single-step aerosol processing for the continuous synthesis of nanostructured particles having homogeneous composition and narrow size distributions, good crystallinity and fluorescence response. This paper presents the synthesis, optimization and characterization of hybrid Ag@Y2O3:Eu (9 at.% Eu3+) phosphor particles by means of spray pyrolysis method from water solutions of common nitrates precursors. The effect of silver concentration on particle structure, morphology and functional properties was specially evaluated. The as-prepared samples were additionally heated from 800 to 1200 °C/12 h under constant argon flow to avoid the silver oxidation. It was evident the cubic phase with Ia-3 symmetry as the principal one in all as-prepared and thermally treated samples. For the case high silver nitrate concentrations in precursor solutions a minority crystalline phase having Fm3m symmetry was identified. The luminescence emission spectra have been taken after excitation at 235 nm wavelength. It is evident the increase in the emission caused by the presence of metallic silver nanoparticles onto Y2O3:Eu3+ particle surface. It was also determined the silver concentration influence on the fluorescence response.",
publisher = "Elsevier",
journal = "Advanced Powder Technology",
title = "Directed growth of nanoarchitected hybrid phosphor particles synthesized at low temperature",
pages = "1442-1448",
volume = "25",
number = "5",
doi = "10.1016/j.apt.2014.03.006"
}
Rabanal ME, Barroso I, Gómez-Villalba LS, Mančić L, Milošević O. Directed growth of nanoarchitected hybrid phosphor particles synthesized at low temperature. Advanced Powder Technology. 2014;25(5):1442-1448
Rabanal, M. E., Barroso, I., Gómez-Villalba, L. S., Mančić, L.,& Milošević, O. (2014). Directed growth of nanoarchitected hybrid phosphor particles synthesized at low temperature.
Advanced Powder TechnologyElsevier., 25(5), 1442-1448. 
https://doi.org/10.1016/j.apt.2014.03.006
Rabanal Maria Eugenia, Barroso Ignacio, Gómez-Villalba Luz Stella, Mančić Lidija, Milošević Olivera, "Directed growth of nanoarchitected hybrid phosphor particles synthesized at low temperature" 25, no. 5 (2014):1442-1448,
https://doi.org/10.1016/j.apt.2014.03.006 .

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