The influence of microstructure on luminescent properties of Y2O3:Eu prepared by spray pyrolysis
GARCIA, Alain
Centre d'élaboration de matériaux et d'études structurales [CEMES]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
< Leer menos
Centre d'élaboration de matériaux et d'études structurales [CEMES]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Idioma
en
Article de revue
Este ítem está publicado en
Journal of Luminescence. 2005, vol. vol. 113, n° 3-4, p. p. 249-257
Elsevier
Resumen en inglés
Y2O3:Eu has been prepared by spray pyrolysis and annealed at various temperatures to obtain crystallized luminescent materials. The microstructure and macrostructure of the obtained powders have been investigated by ...Leer más >
Y2O3:Eu has been prepared by spray pyrolysis and annealed at various temperatures to obtain crystallized luminescent materials. The microstructure and macrostructure of the obtained powders have been investigated by high-resolution SEM and XRD. The luminescent properties have been measured under 254 nm and under VUV excitation. This work allows us to understand the influence of the phosphors' microstructure on luminescent properties. The spray pyrolysis powder photoluminescence efficiencies at 254 nm excitation are lower than that of the commercial phosphor but under Ne–Xe excitation powder brightnesses equal that of the commercial phosphor. Therefore, we are able to prepare a suitable sample for plasma display application.< Leer menos
Palabras clave en inglés
Y2O3
Eu
Phosphor
Spray pyrolysis
Spherical
Microstructure
Luminescence
Orígen
Importado de HalCentros de investigación