Preparation and characterization of Y_3Al_5O_(12):Ln(Ln=Eu,Ce) phosphor powders by ultrasonic atomization and co-precipitation process  

作　　者：张丽 夏海平 邱杨 王冬杰 江浩川 

机构地区：[1]Key Laboratory of Photo-Electronic Materials,Ningbo University

出　　处：《Journal of Rare Earths》2010年第S1期236-240,共5页稀土学报（英文版）

基　　金：Project supported by the National Science Foundation of China (60777030, 50972061);the Natural Science Foundation for Distinguished Young Scientists of Zhejiang Province (R4100364);the Natural Science Foundation of Ningbo City (2009A610007,2010A610185);K.C. Wong Magna Fund in Ningbo University

摘　　要：A novel technique for YAG:Ln(Ln=Eu,Ce) phosphor powder synthesis with a nanocrystalline structure was developed.Nanocrystalline YAG:Ln powder was prepared by an ultrasonic atomization and co-precipitation method using a mixture solution of ammonium hydroxide(NH3·H2O) and ammonium hydrogen carbonate(NH4HCO3) as precipitant.The as-prepared nano-powders were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),and fluorescence spectrometer.The obtained phosphor powders were homogenous and in size of 50-70 nm.The results demonstrated that by using ultrasonic atomization and co-precipitation process,we could synthesize a good quality YAG:Ln(Ln=Eu,Ce) phosphor powder that had many potential applications.A novel technique for YAG:Ln(Ln=Eu,Ce) phosphor powder synthesis with a nanocrystalline structure was developed.Nanocrystalline YAG:Ln powder was prepared by an ultrasonic atomization and co-precipitation method using a mixture solution of ammonium hydroxide(NH3·H2O) and ammonium hydrogen carbonate(NH4HCO3) as precipitant.The as-prepared nano-powders were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),and fluorescence spectrometer.The obtained phosphor powders were homogenous and in size of 50-70 nm.The results demonstrated that by using ultrasonic atomization and co-precipitation process,we could synthesize a good quality YAG:Ln(Ln=Eu,Ce) phosphor powder that had many potential applications.

关 键 词：YAG:Eu YAG:Ce phosphor powders ultrasonic atomization rare earths 

分 类 号：TB383.3[一般工业技术—材料科学与工程]