Abstract
In this paper, a facile synthetic route for the preparation of nanocrystalline BaTiO 3 :Pr 3+ by a solvothermal method is reported; the as-grown powders were found to be amorphous, which crystallized to the tetragonal phase without BaCO 3 byproduct after calcination at 700 °C in air for 3 h. The corresponding bulk BaTiO 3 : Pr 3+ was synthesized by a high-temperature solid-state reaction. All the products were systematically characterized by powder X-ray diffraction (XRD), infrared spectroscopy (IR), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), photoluminescence (PL), and photoluminescent excitation spectra (PLE). The luminescence mechanism and the size dependence of their fluorescence properties are also discussed.
Published Version
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