快速溶胶-凝胶法制备SrAl_2O_4:Eu^(2+),Dy^(3+)绿色长余辉荧光粉及表征

Rapid Preparation and Characterization of Green Long Afterglow Phosphors SrAl_2O_4:Eu^(2+),Dy^(3+) by Sol-Gel Method

建立一种快速溶胶-凝胶法制备长余辉材料的方法。以柠檬酸,硝酸锶,硝酸铝及硝酸铕等为原料,实现了该法的快速制备过程。研究结果表明,通过改进可使该法制备铝酸锶长余辉材料的时间缩短至12h以内,X射线粉末衍射,扫描电镜,光谱分析等表明,使用该方法与传统溶胶-凝胶法制备的样品其性能基本一致。

A method for the rapid preparation of green long afterglow phosphors SrAl2O4-Eu^2＋,Dy^3＋ was established. With citric acid, strontium nitrate, aluminum nitrate and europium nitrate,etc as raw materials,the rapid preparation was achieved. The time of preparation of long afterglow phosphors SrAl2O4： Eu^2＋, Dy^3＋ could be shorten the time to under 12 hours by improvement experiment. The synthesized products were characterized by X ray diffraction,scanning electron microscopy and spectrum analysis, etc. The prepared sample by the method is tended to be consistent with the traditional sol-gel method.