Synthesis and enhanced luminescence of uniform and well-dispersed quasispherical YVO4:Ln3+(Ln = Eu, Dy) nanoparticles by a solvothermal method
作者： Guang Jia , Cuimiao Zhang , Shiwen Ding , Liyong Wang , Lanfen Li
DOI: 10.1039/C1CE05725A
关键词:
摘要: Uniform and well-dispersed quasi-spherical YVO4:Ln3+ (Ln = Eu, Dy) nanoparticles have been successfully synthesized through a solvothermal approach using EG PVP as solvent surfactant, respectively. SEM TEM images indicate that the as-obtained quasispheres are composed of tiny packed nanocrystallites. The YVO4:Eu3+ YVO4:Dy3+ samples show strong red yellow light emissions under ultraviolet excitation. luminescence intensities phosphors greatly enhanced by co-doping Ba2+ ions into YVO4 host lattice. Nitrogen adsorption–desorption measurements reveals as-synthesized luminescent porous structure, which might find potential applications in fields luminescence, drug delivery, disease therapy.
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