碱土金属掺杂对SrTiO_3:Pr^(3+),Na^+体系荧光粉发光性能的影响  

Effect of Doped Alkaline Earth Metals on Luminescent Property of SrTiO_3:Pr^(3+),Na^+ Phosphors

作　　者：杨英[1] 陈永杰[1] 黄志[1] 耿秀娟[1] 

机构地区：[1]沈阳化工大学应用化学学院,辽宁沈阳110142

出　　处：《辽宁化工》2012年第3期229-231,共3页Liaoning Chemical Industry

摘　　要：采用高温固相法在还原气氛下制备了MxSr1-xTiO3:Pr3+,Na+荧光粉。用X射线衍射分析测定了MxSr1-xTiO3:Pr3+,Na+荧光粉的晶体结构,具体研究了碱土金属M(M=Mg、Ca)掺杂对SrTiO3:Pr3+,Na+体系荧光粉发光性能的影响。结果表明,碱土金属Mg2+,Ca2+的掺杂未改变SrTiO3:Pr3+,Na+荧光粉的立方晶系结构。随着碱土金属加入量的增加,各体系中激发峰或发射峰均有不同程度的红移或蓝移。The phosphors MxSr1-xTiO3:Pr3+,Na+ was obtained by high temperature solid-state reaction process in reducing atmosphere.The crystal structure of MxSr1-xTiO3:Pr3+,Na+ was determined by X-ray diffractometer.The effect of molar ratio of alkaline earth metal M(M=Mg,Ca) on luminescent property of the phosphors MxSr1-xTiO3:Pr3+,Na+ was investigated in details.The results indicate that the addition of alkaline earth metal ions doesn't change the cubic crystal structure of the phosphors SrTiO3:Pr3+,Na+;the excitation or emission peak shifts to longer or shorter wavelength to some extent as more alkaline earth metal is added.

关 键 词：碱土金属 钛酸盐 稀土 发光粉 发光性能 

分 类 号：TQ422[化学工程]