成果简介:Sm2O3 crystallites were controllably synthesized by the hydrothermal–calcination process with the assistance of different templates. The phase compositions, morphologies and optical properties of the as-prepared samples were characterized by X-ray diffraction, scanning electron microscope and ultraviolet-visible spectrophotometer. It is investigated that the influence of different templates on the structural and optical properties of Sm2O3 samples. Results showed that Sm2O3 crystallites with ribbon-like, granular and flake-like morphologies were obtained when NaNO3, trisodium citrate and polyvinyl-pyrrolidone (PVP) were used as template agents. These templates effectively controlled the microstructure and optical properties of the as-prepared samples. The monoclinic phase Sm2O3 crystallites with ribbon-like morphology were prepared by using NaNO3 as the template agent, which energy gap is only 4.827 eV.
论文引用方式:Yin Lixiong, Wang Dan, Huang Jianfeng, Tan Guoqiang and Ren Huijun. Controllable synthesis of Sm2O3 crystallites with the assistance of templates by a hydrothermal-calcination process[J]. Materials Science in Semiconductor Processing, 2015, 30:9-13.
论文链接:http://www.sciencedirect.com/science/article/pii/S1369800114005174