Synthesis and luminescent properties of spindle-like YVO4:Ln3+ (Ln=Eu, Dy) self-assembled of nanoparticles

Large-scale spindle-like YVO4 particles with an euatorial diameter of 100–150 nm and a length of 300–350 nm were synthesized by utilizing the Y(OH)CO3 colloid spheres as the precursor and NH4VO3 as the vanadium source through a simple solution-based hydrothermal process, for the first time. In the first stage of the reaction, hierarchical flower-like YVO4 spheres were formed. Then, petals of spindle-like YVO4 particles were obtained via a following self-abscission process from these flower spheres. The possible formation mechanism has been discussed in detail. Moreover, the photoluminescent properties of spindle-like YVO4:Ln3+ (Ln=Eu, Dy) nanoparticles were investigated. They might have potential application in advanced flat panel display, minioptoelectronic devices, and biological labeling.

Graphical AbstractLarge-scale spindle-like YVO4 particles were synthesized by utilizing the Y(OH)CO3 colloid spheres as the precursor and NH4VO3 as the vanadium source, through a simple solution-based hydrothermal process. The photoluminescent properties of spindle-like YVO4:Ln3+ (Ln=Eu, Dy) nanoparticles were investigated, which might have potential application in advanced flat panel display, minioptoelectronic devices, and biological labeling.Figure optionsDownload as PowerPoint slideHighlights
► Large-scale spindle-like YVO4 particles were synthesized through a simple solution-based hydrothermal process, for the first time.
► The Y(OH)CO3 colloid spheres acted both as the reaction precursor as well as sacrificial template to form YVO4 products.
► They might have potential application in advanced flat panel display, minioptoelectronic devices, and biological labeling.