机构地区: 中山大学化学与化学工程学院化学系
出 处: 《高等学校化学学报》 1995年第6期844-846,共3页
摘 要: 微波热效应法合成Y_2O_3∶Eu^(3+)荧光体李沅英,戴德昌,蔡少华(中山大学化学系,广州,510275)关键词微波热效应法,合成,荧光体,掺铕氧化钇掺铕(Ⅲ)氧化钇荧光体是阴极射线管(CRT)、彩色投影电视和三基色节能荧光灯等领域的重要发光材料。?.. It is the first report of using the microwave heating to synthesize powder crystal form Y2O3: Eu3+ phosphors whose structure is a kind of cubic system with lattice parameter a=1.0607 nm,The phosphors have excitation spectra peak atλex=248.5nm,and emission spectra peaks atλex=611.5 nm. Under 254 nm excitation, the phosphors were measured by FMS-1 chromatic detector,and its chromatic coordinates are x=0.646,y=0.350 respectively. The relative luminescent brightness is about 70%,compared with the same standard phosphors.The particle size distribution was measured by SA-CP3 particle size analyzer,and its medium diameter is 3.90μm.
领 域: [电子电信]