DAIS - Digital Archive of the Serbian Academy of Sciences and Arts
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrillic)
    • Serbian (Latin)
  • Login
View Item 
  •   DAIS
  • Институт техничких наука САНУ / Institute of Technical Sciences of SASA
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
  • View Item
  •   DAIS
  • Институт техничких наука САНУ / Institute of Technical Sciences of SASA
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route

Thumbnail
2012
1921.pdf (1.374Mb)
Authors
Mančić, Lidija
Lojpur, Vesna
Barroso, Ignacio
Rabanal, Maria Eugenia
Milošević, Olivera
Article (Accepted Version)
Metadata
Show full item record
Abstract
Polycrystalline fine powders of yttrium aluminate doped with Ce3+ were synthesised by spray pyrolysis of a polymeric precursor, which was obtained by dissolving the corresponding nitrates in a solution of ethylenediaminetetraacetic acid (EDTA) in ethylene glycol (EG). Aerosol decomposition was performed at 550 °C followed by an additional thermal treatment (900–1100 °C). The yield of either a single yttrium aluminium perovskite (YAP) phase or a single yttrium aluminium garnet (YAG) phase was investigated as a function of the predefined yttrium/aluminium ratio, the cerium doping concentration, the processing temperature, and the thermal-treatment regime, which included the variation of the heating and cooling rates (dT/dt), the residence time (τ), and the atmosphere. Changes in the composition and structure of the precursor during thermal decomposition were investigated by thermogravimetric and differential thermal analysis (TGA/DTA) and FTIR spectroscopy. The particle morphology and st...ructure were analysed by a combination of scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM/EDS) and by high-resolution transmission electron microscopy (HR-TEM). The structural refinement was based on the phase identification performed by X-ray powder diffraction (XRPD). The emission spectra were recorded within the range 325–800 nm by applying excitation wavelengths of 297 (YAP) and 450 nm (YAG). The employed synthesis conditions assured the formation of spherical, non-agglomerated particles with well-developed surfaces and diameters between 200 and 800 nm. For a predefined Y/Al ratio of 1:1, lower processing temperatures combined with longer heat treatments under stationary conditions resulted in a multiphase system, composed of YAP, YAG, and monoclinic yttrium aluminate (YAM) phases. However, a short heat treatment with a high heating rate (200 °C/min) at higher temperatures results in the formation of a kinetically favoured pure YAP hexagonal phase. On the other hand, for a predefined Y/Al ratio of 3:5, the generation of a thermodynamically favoured pure YAG phase has been confirmed, regardless of the applied heat-treatment conditions. Although incomplete, Ce3+ introduction into the host matrix has been detected by XRPD and luminescence measurements.

Keywords:
luminescence / nanoparticles / polymerization / spray pyrolysis / yttrium aluminates
Source:
European Journal of Inorganic Chemistry, 2012, 16, 2716-2724
Publisher:
  • Hoboken, NJ : John Wiley & Sons
Funding / projects:
  • Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology (RS-172035)
  • University Carlos III (Madrid, Spain) and the Santander Bank Chairs of Excellence Programme
Note:
  • This is the peer-reviewed version of the paper Mancic, L., Lojpur, V., Barosso, I., Rabanal, M.E., Milosevic, O., 2012. Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route. European Journal of Inorganic Chemistry 2012, 16, 2716–2724. https://doi.org/10.1002/ejic.201101053

DOI: 10.1002/ejic.201101053

ISSN: 1099-0682

WoS: 000304089700018

Scopus: 2-s2.0-84861326689
[ Google Scholar ]
13
11
Handle
https://hdl.handle.net/21.15107/rcub_dais_15973
URI
https://dais.sanu.ac.rs/123456789/15973
Collections
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - JOUR
AU  - Mančić, Lidija
AU  - Lojpur, Vesna
AU  - Barroso, Ignacio
AU  - Rabanal, Maria Eugenia
AU  - Milošević, Olivera
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/15973
AB  - Polycrystalline fine powders of yttrium aluminate doped with Ce3+ were synthesised by spray pyrolysis of a polymeric precursor, which was obtained by dissolving the corresponding nitrates in a solution of ethylenediaminetetraacetic acid (EDTA) in ethylene glycol (EG). Aerosol decomposition was performed at 550 °C followed by an additional thermal treatment (900–1100 °C). The yield of either a single yttrium aluminium perovskite (YAP) phase or a single yttrium aluminium garnet (YAG) phase was investigated as a function of the predefined yttrium/aluminium ratio, the cerium doping concentration, the processing temperature, and the thermal-treatment regime, which included the variation of the heating and cooling rates (dT/dt), the residence time (τ), and the atmosphere. Changes in the composition and structure of the precursor during thermal decomposition were investigated by thermogravimetric and differential thermal analysis (TGA/DTA) and FTIR spectroscopy. The particle morphology and structure were analysed by a combination of scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM/EDS) and by high-resolution transmission electron microscopy (HR-TEM). The structural refinement was based on the phase identification performed by X-ray powder diffraction (XRPD). The emission spectra were recorded within the range 325–800 nm by applying excitation wavelengths of 297 (YAP) and 450 nm (YAG). The employed synthesis conditions assured the formation of spherical, non-agglomerated particles with well-developed surfaces and diameters between 200 and 800 nm. For a predefined Y/Al ratio of 1:1, lower processing temperatures combined with longer heat treatments under stationary conditions resulted in a multiphase system, composed of YAP, YAG, and monoclinic yttrium aluminate (YAM) phases. However, a short heat treatment with a high heating rate (200 °C/min) at higher temperatures results in the formation of a kinetically favoured pure YAP hexagonal phase. On the other hand, for a predefined Y/Al ratio of 3:5, the generation of a thermodynamically favoured pure YAG phase has been confirmed, regardless of the applied heat-treatment conditions. Although incomplete, Ce3+ introduction into the host matrix has been detected by XRPD and luminescence measurements.
PB  - Hoboken, NJ : John Wiley & Sons
T2  - European Journal of Inorganic Chemistry
T1  - Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route
SP  - 2716
EP  - 2724
VL  - 16
DO  - 10.1002/ejic.201101053
UR  - https://hdl.handle.net/21.15107/rcub_dais_15973
ER  - 
@article{
author = "Mančić, Lidija and Lojpur, Vesna and Barroso, Ignacio and Rabanal, Maria Eugenia and Milošević, Olivera",
year = "2012",
abstract = "Polycrystalline fine powders of yttrium aluminate doped with Ce3+ were synthesised by spray pyrolysis of a polymeric precursor, which was obtained by dissolving the corresponding nitrates in a solution of ethylenediaminetetraacetic acid (EDTA) in ethylene glycol (EG). Aerosol decomposition was performed at 550 °C followed by an additional thermal treatment (900–1100 °C). The yield of either a single yttrium aluminium perovskite (YAP) phase or a single yttrium aluminium garnet (YAG) phase was investigated as a function of the predefined yttrium/aluminium ratio, the cerium doping concentration, the processing temperature, and the thermal-treatment regime, which included the variation of the heating and cooling rates (dT/dt), the residence time (τ), and the atmosphere. Changes in the composition and structure of the precursor during thermal decomposition were investigated by thermogravimetric and differential thermal analysis (TGA/DTA) and FTIR spectroscopy. The particle morphology and structure were analysed by a combination of scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM/EDS) and by high-resolution transmission electron microscopy (HR-TEM). The structural refinement was based on the phase identification performed by X-ray powder diffraction (XRPD). The emission spectra were recorded within the range 325–800 nm by applying excitation wavelengths of 297 (YAP) and 450 nm (YAG). The employed synthesis conditions assured the formation of spherical, non-agglomerated particles with well-developed surfaces and diameters between 200 and 800 nm. For a predefined Y/Al ratio of 1:1, lower processing temperatures combined with longer heat treatments under stationary conditions resulted in a multiphase system, composed of YAP, YAG, and monoclinic yttrium aluminate (YAM) phases. However, a short heat treatment with a high heating rate (200 °C/min) at higher temperatures results in the formation of a kinetically favoured pure YAP hexagonal phase. On the other hand, for a predefined Y/Al ratio of 3:5, the generation of a thermodynamically favoured pure YAG phase has been confirmed, regardless of the applied heat-treatment conditions. Although incomplete, Ce3+ introduction into the host matrix has been detected by XRPD and luminescence measurements.",
publisher = "Hoboken, NJ : John Wiley & Sons",
journal = "European Journal of Inorganic Chemistry",
title = "Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route",
pages = "2716-2724",
volume = "16",
doi = "10.1002/ejic.201101053",
url = "https://hdl.handle.net/21.15107/rcub_dais_15973"
}
Mančić, L., Lojpur, V., Barroso, I., Rabanal, M. E.,& Milošević, O.. (2012). Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route. in European Journal of Inorganic Chemistry
Hoboken, NJ : John Wiley & Sons., 16, 2716-2724.
https://doi.org/10.1002/ejic.201101053
https://hdl.handle.net/21.15107/rcub_dais_15973
Mančić L, Lojpur V, Barroso I, Rabanal ME, Milošević O. Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route. in European Journal of Inorganic Chemistry. 2012;16:2716-2724.
doi:10.1002/ejic.201101053
https://hdl.handle.net/21.15107/rcub_dais_15973 .
Mančić, Lidija, Lojpur, Vesna, Barroso, Ignacio, Rabanal, Maria Eugenia, Milošević, Olivera, "Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route" in European Journal of Inorganic Chemistry, 16 (2012):2716-2724,
https://doi.org/10.1002/ejic.201101053 .,
https://hdl.handle.net/21.15107/rcub_dais_15973 .

DSpace software copyright © 2002-2015  DuraSpace
About DAIS - Digital Archive of the Serbian Academy of Sciences and Arts | Send Feedback

CoreTrustSealre3dataOpenAIRERCUB
 

 

All of DSpaceInstitutions/communitiesAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About DAIS - Digital Archive of the Serbian Academy of Sciences and Arts | Send Feedback

CoreTrustSealre3dataOpenAIRERCUB