Research Of Preparation And Luminescent Capability On The Nanocrystal Y₂O₃: Eu～(3+) Red Phosphor Powder

In this dissertation,we used precipitation method to prepare rare earths luminescent materials Y₂O₃:Eu³⁺ and we added different surfactant dodecamine,tetrabutyl-bromize-ammonium,CTAB and metallic ions such as K⁺,Mg²⁺,Ba²⁺ which were characterized by XRD, IR,granularity,excitation and emission spectra. The effect to rare earths luminescent materials Y₂O₃:Eu³⁺ were compared by adding different surfacant and metallic ions.By many experiments, we got the conclusion. 1.In the oxalic acid series, the luminescent properities of rare earths luminescent materials Y₂O₃:Eu³⁺ increase by adding surfactant dodecamine,no change by adding CTAB,and decrease by adding tetrabutyl-bromize-ammonium,likewise adding metallic ion K⁺ can increase luminescent intensity, metallic ion Ba²⁺ can increase luminescent intensity a little,and no luminescent intensity change when added metallic ion Mg²⁺. 2.In the urea series, the luminescent intensity of rare earths luminescent materials Y₂O₃:Eu³⁺ increase by adding surfactant dodecamine;basically no change by adding CTAB,and decrease by adding tetrabutyl-bromize-ammonium,likewise adding metallic ion K⁺, Ba²⁺ and Mg²⁺ all can increase luminescent intensity.