Preparation and characterization of rod-like Eu:Gd2O3 phosphor through a hydrothermal routine

Rod-like Gd(OH)(3) precursor was successfully synthesized through a hydrothermal routine. Eu:Gd2O3 red phosphor was obtained by a subsequent calcination of the precursor at 600 degreesC for 4 h. The dehydration of Gd(OH)(3) precursor took two steps and an intermediate phase, monoclinic GdOOH. was produced. The rod-like phosphor will emit a strong visible light peaking at 610 nm upon 258 nm UV illumination, implying its potential application in the field of luminescent devices. (C) 2004 Elsevier B.V. All rights reserved.