燃烧合成CaAl_2O_4:Eu^(2+),Nd^(3+)长余辉荧光粉的研究

Combustion Synthesis of CaAl_2O_4∶Eu,Nd Long Persistence Phosphors

应用燃烧法在较低的温度(<850℃)下成功合成了CaAl2O4∶Eu2+,Nd3+稀土纳米长余辉发光材料。研究了炉温、激活剂、辅助激活剂、助溶剂和可燃物等对发光材料性能的影响。研究结果表明,反应物置于温度为600℃的高温炉中燃烧,所得到产物的发光性能最好,发射光谱的最大波长在450 nm左右。

Eu and Dy activated CaAl2O4 ： Eu^2＋ , Nd^3 ＋ nanometer phosphors with long persistence were synthesized by the combustion method at lower temperature（ 〈 850 ℃ ） . The influence of the temperature of furnace, the content of the activator, the assistant activator, the flux and the combustibles etc were researched. The results indicated that the best temperature in the furnace for its synthesis was 600 ℃. The emission spectra wavelength was about 450 nm.