Ca^(2+)对2SrO·3Al_2O_3:Eu^(2+),Dy^(3+)发光材料性能的影响  

Influence of Ca^(2+) on Luminescent Properties of 2SrO·3Al_2O_3:Eu^(2+),Dy^(3+)

作　　者：顾庭瑞[1] 金应荣[1] 贺毅[1] 马郡键[1] 

机构地区：[1]西华大学材料科学与工程学院,四川成都610039

出　　处：《西华大学学报（自然科学版）》2006年第5期32-33,65,共3页Journal of Xihua University:Natural Science Edition

摘　　要：文章采用固相反应法合成了具有不同Ca2+浓度,名义组成为2SrO.3Al2O3:Eu2+,Dy3+的长余辉发光材料,初步研究了Ca2+对这种材料性能的影响,结果表明,尽管Ca2+会熔入晶格中使发光强度降低,但是当其他助熔剂如B2O3加入量较少时,CaCO3在材料烧结过程中助熔剂作用就能表现出来,从而提高材料的余辉亮度,延长材料的余辉时间。Solid reaction method is employed to synthesize 2SrO·3Al_2O_3:Eu^(2+),Dy^(3+) phosphor with different concentration of Ca^(2+) in this paper,and then the influence of Ca^(2+) on the luminescent properties of the phosphor is investigated.It is shown that Ca^(2+) can dissolve in the phosphor and make the luminescent intensity decreased,but CaCO_3 can still act as flux when lack of other flux,such as B_2O_3,to promote the solid reaction process,and increase the intensity and lasting time of afterglow for the phosphor.

关 键 词：2SrO·3Al2O3:Eu^2+ Dy^3+ 发光材料 余辉时间 

分 类 号：TQ174.1[化学工程—陶瓷工业] O482.31[化学工程—硅酸盐工业]