title: Investigation on combustion derived BaMgAl10O17:Eu2+ phosphor powder and its corresponding PVP/BaMgAl10O17:Eu2+ nanocomposite.
abstract: This work focuses on the study of BaMgAl10O17:Eu(2+) (BAM:Eu) nanophosphors prepared by a microwave-assisted combustion procedure and more especially on the polymer/BAM:Eu nanocomposite film suitable for optical devices such as solid-state-lighting. Powder presented a specific nanomorphology, highly friable and thus easily ground into fine particles. They were then homogeneously dispersed into a polymer solution (poly(N-vinylpyrrolidone) or PVP) to elaborate a polymer phosphor nanocomposite. The structural, morphological and optical features of the nanocomposite film have been studied and compared to those of a pristine PVP film and BAM:Eu powder. All the characterizations (XRD, SEM, SAXS, etc.) proved that the blue phosphor nanoparticles are well incorporated into the polymer nanocomposite film which exhibited the characteristic blue emission of Eu(2+) under UV light excitation. Furthermore, the photostability of the polymer/phosphor nanocomposite film has been studied after exposure to accelerated artificial photoageing at wavelengths above 300 nm.
authors.affiliation: Clermont Université, ENSCCF, Institut de Chimie de Clermont-Ferrand, BP 10448, F-63000 Clermont-Ferrand, France. nathalie.pradal@univ-bpclermont.fr.
authors.forename: Nathalie
authors.initials: N
authors.lastname: Pradal
authors.forename: Geneviève
authors.initials: G
authors.lastname: Chadeyron
authors.forename: Sandrine
authors.initials: S
authors.lastname: Thérias
authors.forename: Audrey
authors.initials: A
authors.lastname: Potdevin
authors.forename: Celso V
authors.initials: CV
authors.lastname: Santilli
authors.forename: Rachid
authors.initials: R
authors.lastname: Mahiou