Low-temperature synthesis of SrWO4 nano-particles by a molten salt method

SrWO4 nano-particles with a scheelite structure were successfully prepared by a molten salt method at 270 °C. The structure, morphology and luminescent property of the resultant powders were characterized by X-ray diffraction (XRD), transmission electron microcopy (TEM), and photoluminescence (PL), respectively. The resultant samples are a pure phase; the size, morphology and properties of SrWO4 nano-particles were affected by the calcining time and weight ratio of the salt to the SrWO4 precursor has little influence on it. PL spectra results also show that the optical properties of the SrWO4 nano-particles strongly relied on their crystallinity.