Multi-fluorescent dye-doped SiO2/lanthanide complexes hybrid particles

In this paper, we have synthesized multi-fluorescent dye-doped SiO2/lanthanide complex hybrid particles, which provided a novel strategy for the design of the multi-fluorescent SiO2 particles. The resultant hybrid particles were uniformly spherical in morphology and close to monodispersity. These hybrid particles exhibited the fluorescent properties of the dye-doped SiO2 and the lanthanide complexes under different excited wavelength. The fluorescent intensity ratio between the dye-doped SiO2 and the lanthanide complex in the hybrid particles can be tuned precisely by changing the concentration of the lanthanide ions in the reaction system. (c) 2005 Elsevier B.V. All rights reserved.