硼掺杂对SrAl2O4:Eu,Dy长余辉发光材料合成温度及性能的影响

采用固相法合成了系列掺硼SrAl2O4:Eu,Dy长余辉发光材料。通过测试分析合成粉体的物相组成、激发光谱、发射光谱和余辉时间,研究了硼掺杂对SrAl2O4:Eu,Dy长余辉发光材料合成温度与发光性能的影响。实验结果表明,添加硼一方面做为助熔剂可以降低合成温度,另一方面当硼摩尔分数小于30%时,增加硼含量可以延长余辉时间,但硼含量的变化对激发和发射光谱峰值没有明显影响。

Influence of Doping Boron on Synthesis Temperature and Properties of SrAl2O4: Eu, Dy Phosphor

A series doping boron long persistent SrAl_2O_4:Eu,Dy phosphors were prepared by solid-state reaction.To study influence of doping boron on synthesis temperature and properties of SrAl_2O_4: Eu,Dy phosphors,the following properties of the luminescent material were tested and analyzed:such as phase composition,excitation spectrum,emission spectrum and decay time.The result indicates that the doped boron reduces the synthesizing temperature as a flux,at the same times when boron content is less than 30%,increasing boron content can prolong the decay time,however,the excitation and emission spectrum have no distinct effect.