燃烧法合成CaAl_2O_4∶Eu^(2+),Nd^(3+)长余辉发光材料  

Combustion Synthesis of CaAl_2O_4∶Eu_^(2+),Nd^(3+) Long Afterglow Phosphors

作　　者：刘小蕊[1] 张玉奇[1] 张瑞军[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400045

出　　处：《材料导报》2007年第F05期319-320,共2页Materials Reports

摘　　要：以尿素和硝酸盐溶液为反应介质,在600℃用燃烧法一次合成出了Eu2+,Nd3+掺杂的铝酸钙磷光体。用XRD研究了产物的物相组成,用荧光分光光度计测定了产物的激发光谱和发射光谱。结果表明:合成产物的晶体结构属于单斜晶系,在442nm处有很强的发射峰。并探讨了该材料发光性能的影响因素。Eu^2＋ and Nd^3＋ doped calcium aluminate phosphors with high brightness and long afterglow are synthesized by combustion method using urea-nitrate solution as media at 600℃. Configuration of the phosphor is studied by means of XRD, and excitation and emission spectra are researched by means of spectrometer. The result shows that the crystal configuration of CaAl2O4 ： Eu^2＋ ,Nd^3＋ phosphor is monoclinic structure, and there is an intensity emission peak at 442nm. The influence of processing factors on luminescence of phosphor is discussed.

关 键 词：燃烧法 长余辉 铝酸钙 影响因素 

分 类 号：TQ651.1[化学工程—精细化工]