%0 Journal Article
%T Preparation and characterization of monodisperse spherical particles of X-ray nano-phosphors based on Gd2O2S:Tb
%A MingMing Xing
%A WangHe Cao
%A Tao Pang
%A XiaoQiao Ling
%A Ning Chen
%J Chinese Science Bulletin
%@ 1861-9541
%D 2009
%I 
%R 10.1007/s11434-009-0492-9
%X Monodisperse spherical Gd2O2S:Tb nanoparticles have been prepared using an improved homogeneous precipitation method combined with solid-gas sulfuration technology. The effects of Tb3+-doped concentration on luminescent intensity and color purity of samples were investigated, and the optimal Tb3+-doped concentration was determined. Under the excitation of X-ray, the obtained sample shows excellent luminescent properties, and its luminescent intensity is increased by about 50% under lower sulfuration temperature compared with that of the Gd2O2S:Tb nanoparticles prepared by complex precipitation method.
%K rare earth oxysulfide
%K X-ray phosphor
%K nanoparticle
%U http://link.springer.com/article/10.1007/s11434-009-0492-9