Y_2O_3:Eu^(3+)氧化物的制备与结构及其发光性能

Synthesis、Structure and Spectrum Properties of Red Phosphor Y_2O_3:Eu^(3+) Oxide

对用草酸沉淀法制备的、不经球磨的红色发光材料Y2O3:Eu3+的结构和发光性能进行了研究。结果表明:该荧光粉大小分布均匀,一次粒径为4~6μm,最大激发峰位于238 nm,最大发射峰位于613 nm,荧光粉色品坐标x=0.645 4,y=0.340 8,相对亮度为181,可满足灯用荧光粉的要求。

The Structure and Spectrum Properties of non-balled red phosphor Y2O3： Eu^3＋ synthesized by oxalic acid precipitation method were carried out in this experiment. The result shows that the size of the phosphor has a good homogeneity. The phosphor is fine and uniformly distributed. The diameter of the phosphor is 4-6 μm. The maximum peaks of excitation spectrum （λex） of the phosphor is at 238 nm. , the maximum peaks of emission spec- trum （~.em） is at 613 nm. ,the luminescent chromatic coordinate parameters are x = 0. 645 4,y = 0.340 8 and the relative luminescent is 181. The red phosphor meets with the demand of application as lamp phosphor.