One-pot reverse microemulsion synthesis of core–shell structured YVO4:Eu3+@SiO2 nanocomposites

Core–shell structured YVO 4 :Eu 3+ @SiO 2 nanocomposite particles were synthesized using a one-pot reverse microemulsion method and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV absorption spectra , and photoluminescent spectra. The nanocomposite particles are well-dispersed and about 20   nm in average size. The synthesis method is of one-pot, simplifying the preparation of this kind of core–shell structured nanocomposites. The formation process of these nanocomposite particles is suggested and the photoluminescence properties of them are studied and compared with those of uncoated YVO 4 :Eu 3+ sample.