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Luminescent properties of Y2O3:Eu3+ nanophosphor prepared from urea added precursor using flame spray pyrolysis

Published online by Cambridge University Press:  31 January 2011

Jae Seok Lee ,
Se Jin Kim ,
Tae Kon Kim ,
Rajiv K. Singh  and
Madhav B. Ranade
Jae Seok Lee*
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611
Rajiv K. Singh
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611
Madhav B. Ranade
Affiliation:
Particle Engineering Research Center, University of Florida, Gainesville, Florida 32611
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

Y2O3:Eu3+ nanophosphor was synthesized by flame spray pyrolysis (FSP) from urea added nitrate based liquid precursor. In this study, urea serves as fuel and subsequently provides additional heat in the flame zone during the synthesis of phosphor particles. The end product shows cubic phase Y2O3:Eu3+ nanophosphor successfully prepared by FSP without heat treatment. The influence of synthesis conditions such as different mol of urea and nitrate source materials in aqueous solution, and doping concentration on luminescent properties, were investigated. The characteristics of nanophosphor such as crystallinity and morphology under various experiments of conditions were carried out by x-ray diffraction (XRD) and field emission-scanning electron microscopy (FE-SEM). The particle size of product was found to be in the range of 20–30 nm from transmission electron microscopy (TEM). In photoluminescence (PL) properties, Y2O3:Eu3+ nanophosphor emitted red light with a peak wavelength of 609 nm when excited with 398 nm wavelength photons.

Keywords

Flame synthesisNanostructureOptical properties
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 8 , August 2009 , pp. 2584 - 2588
Copyright
Copyright © Materials Research Society 2009

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