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《Chinese Journal of Luminescence》 2016-02
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Hydrothermal Synthesis and Luminescence Properties of NBT-Eu Nanopowders

SUN Jian-jian;CHEN Peng-fei;ZHANG Shuai;FANG Bi-jun;DING Jian-ning;School of Materials Science and Engineering,Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering,Changzhou University;  
Na_(0.5)Bi_(0.49)Eu_(0.01)TiO_3 nanopowders were prepared by the hydrothermal method under different conditions. The synthesized nanopowders were characterized by X-ray diffraction,UV-visible spectra,transmission electron microscopy and photoluminescence spectra. The results reveal that the phase-pure rhombohedral perovskite structure NBT-Eu powders can be prepared at a hydrothermal temperature of 200℃ for 24 h with 12 mol ·L- 1NaOH and 0. 6 mL OP-10. The powders exhibit nanorod shape with a diameter of 15 to 200 nm. Under the excitation of 458 nm light,NBT-Eu nanopowders exhibit the strongest emission at 689 nm,which can be attributed to ~5D_0→~7F_4transition of Eu~(3+).
【Fund】: 国家自然科学基金(51577015);; 江苏省高校自然科学研究重大项目(15KJA43002);; 江苏高校优势学科建设工程(苏学科办〔2014〕9号)资助项目
【CateGory Index】: O482.31
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