燃烧法制备YAG∶Ce^(3+)荧光粉的研究

A Study on Synthesis of YAG:Ce^(3+) Phosphors with Combustion Method

本文采用燃烧法制备YAG∶Ce3+荧光粉。用正交试验法设计实验,确定最佳的制备工艺条件。研究结果发现,最佳的燃烧剂为乙二醇,最佳的燃烧剂与硝酸铝的比例为1/0.6(质量比),最佳加热温度为950℃,最佳的铈离子掺杂为0.06 mol,最佳燃烧时间为2.5h。在上述条件下,合成的YAG∶Ce3+荧光粉发光效果最好。

In this paper, YAG ： Ce3＋ phosphors were prepared by low temperature combustion method. The experiments were designed with orthogonal test, to explore the influence of five important factors, i.e. combustion agent,Wcombustion agent/WAl（NO）, the amount of doping Ce3＋, combustion temperature and combustion time, on the ligh- emitting intensity of YAG ： Ce3＋ phosphors prepared,and to determine the best preparation conditions for YAG ： Ce3＋ phosphors. The research results have shown that the influence of five factors on light-emitting intensity of YAG ： Ce3＋ phosphors have following order, combustion agent 〉 combustion time 〉 combustion temperature 〉 the amount of doping Ce3＋〉Wcombustion agent/WAl（NO）3· The best conditions for the preparation of YAG ： Ce3＋ phosphors are ethylene glycol as combustion agent, Wcornbustion agent/WAl（NO3）3 =1/0.6, the amount of doping Ce3＋ 0.06 tool, combustion temperature 950 V and combustion time 2.5 h. Under these conditions, the light-emitting intensity of YAG ： Ce3＋ phosphors prepared is the largest.