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)

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Show full item recordAbstract
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 / luminescenceSource:
Advanced Powder Technology, 2014, 25, 5, 1442-1448Publisher:
- 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
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 .