Research of Preparation and Luminescent Capability on the Nanocrystal

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 Block neodymium magnet 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 Block neodymium magnet adding CTAB,and decrease by adding tetrabutyl-bromize-ammonium,likewise adding metallic ion K+, Ba2+ and Mg2+ all can increase luminescent intensity.