Sr2MgSiO5:Eu2+发光材料的制备及荧光性能  

Preparation and Spectroscopic Characterization of Sr2MgSiO5: Eu2+ Luminescent Materials

作　　者：闫凤巧[1] 于翠[1] YAN Feng-qiao;YU Cui(Yanching Institute of Technology,Hebei Langfang 065201,China)

机构地区：[1]燕京理工学院

出　　处：《广州化工》2020年第3期42-43,102,共3页GuangZhou Chemical Industry

基　　金：2016年河北省高等学校科学研究计划项目(ZC2016167)

摘　　要：采用溶胶-凝胶法制备了系列Sr2MgSiO5:Eu^2+发光材料,并采用X射线衍射仪(XRD)、荧光光谱(PL)等测试方法对样品的物相结构和发光特性进行了表征及测试。研究结果表明:Sr2MgSiO5:Eu^2+发光材料中,加入少量Eu^2+离子后没有明显改变Sr 2MgSiO 5晶体结构,提高晶化温度有利于Sr 2MgSiO 5晶相的生成。当Eu^2+的掺杂量为0.04,Ba 2MgSiO 5:Eu^2+发光强度最佳。本文合成的宽激发带Sr2MgSiO5:Eu^2+发光材料可以应用到白光LED的技术中。The luminescent materials of Sr2MgSiO5:Eu^2+were prepared by sol-gel method,and the resultant samples were characterized and analyzed using X-ray diffraction(XRD)and fluorescence spectroscopy(PL).The results showed that the addition of a small amount of Eu^2+ions did not significantly change the Sr2MgSiO5 crystal structure in Sr2MgSiO5:Eu^2+luminescent material,increasing the crystallization temperature was conducive to the formation of Sr2MgSiO5 crystal phase.It was determined that the best doping amount of Eu^2+molar fraction X(Eu^2+)=0.04,Ba 2MgSiO 5:Eu^2+had the best luminous intensity.Sr2MgSiO5:Eu^2+for the synthesis of wide excitation bands can be applied to white LED technology.

关 键 词：溶胶-凝胶法 激发光谱 发射光谱 

分 类 号：O482.31[理学—固体物理]