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

The Structure and Spectrum Properties of non-balled red phosphor Y_2O_3: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 spectrum(λem) 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.