In situ chemical co-precipitation synthesis of YVO4:RE (RE = Dy3+, Sm3+, Er3+) phosphors by assembling hybrid precursors

Abstract YVO 4 :RE (RE = Dy 3+ , Sm 3+ , Er 3+ ) were prepared via an in situ chemical co-precipitation technology, and the assembly process of hybrid precursors was as follows: using rare earth coordination polymers with salicylic acid as precursors and composing with the polyvinyl alcohol (PVA) as dispersing media. Their microstructure and micromorphology have been analyzed by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM), which indicate that there exist some novel cobblestone-like microcrystalline particles. All the doped rare earth ions showed their characteristic emissions in YVO 4 hosts. The concentration quenching all appeared of the three dopant ions and the optimum concentrations for Dy 3+ , Er 3+ , Sm 3+ were determined to be 2, 3, 1 mol% in yttrium vanadate particles, respectively.