摘要
稀土激活的碱土铝酸盐材料是现今应用最广泛的发光材料,但其发光颜色单调,发射光谱主要集中在440～520nm范围内,缺乏长波段(黄、红)的发光色。在发射峰为505nm的SrAl2O4∶Eu2+,Dy3+基础上,掺杂红色偶氮颜料,使发光材料的发射光谱发生红移,研究了其光色变化,并结合余辉性能测试,讨论了发光材料的光色红移规律。实验表明,通过掺杂红色偶氮颜料可以使发光材料的光色从绿光区域红移至黄光区域,这为丰富稀土激活的碱土铝酸盐材料夜光制品的光色提供了一定的理论和实验基础。
The rare earth activation alkaline aluminum acid salt material is the most extensive luminescence ma terials now, but its emitting light colors drab, emission spectrum mainly focus on 440-520nm range, lack of long band （yellow, red） light-emitting color. Dope red azo dye of SrAl2O4：Eu^2＋,Dy^3＋ peak for 505nm, make lumines cence materials emission spectrum redshift happen. On this basis, the light color of luminescence materials is re- searched and the light color redshift rule of luminescence materials is discussed with the ray performance test. Experiments show that by doping red azo dye, luminescence materials light color can be moved from yellow green to red. This result provides certain theoretical and experimental basis for rare earth activation rich alkaline aluminates salt materials luminous products of light color.
基金
江苏省高等学校优秀科技创新团队资助计划(苏教科[2009]10号)
