夜光纤维用发光材料制备中Eu^(2+),Dy^(3+)掺量的选择  

Selection of Eu^(2+),Dy^(3+) Content in the Preparation of Luminescent Materials for Luminous Fiber

作　　者：金昭[1] 张玲[1] 葛明桥[1] 

机构地区：[1]江南大学生态纺织教育部重点实验室,江苏无锡214122

出　　处：《江南大学学报（自然科学版）》2010年第3期323-327,共5页Joural of Jiangnan University (Natural Science Edition)　

基　　金：国家自然科学基金项目(50843029);国家863计划项目(2007AA03Z539)

摘　　要：研究了Eu2+,Dy3+掺量在晶相结构、光色性能、相对亮度和余辉性能方面对夜光纤维用发光材料的影响,阐明了夜光纤维用发光材料应如何对Eu2+,Dy3+掺量进行选择。结果表明:改变Eu2+,Dy3+掺量不会使光谱发生蓝移或红移,若想得到其他光色的SrAl2O4夜光纤维,则须改变稀土离子的种类;在相对亮度方面,Eu2+掺量的影响较大,Dy3+掺量的影响则比较微弱;Eu2+,Dy3+掺量均对余辉性能有很大的影响,在实验范围内,当Eu2+掺量为0.02,Dy3+掺量为0.03时,余辉亮度最高,时间最长,是夜光纤维用发光材料制备的最佳选择。The impact of Eu^2＋,Dy^3＋ content on luminescent materials for luminous fiber were investigated from the crystal structure,photochromic property,the relative brightness and afterglow property.The results showed that： The change of Eu^2＋,Dy^3＋ content did not lead to blue shift or red shift.To get other light color luminous fiber,types of rare-earth ions must be changed;Eu^2＋ had a great impact on the relative brightness,but Dy^3＋ effect is relatively weak;It is the most important for luminous fibers to have a good afterglow performance,while Eu^2＋,Dy^3＋ content both have a great impact on the afterglow property.Accoding to the experimental data,when the Eu^2＋ content was 0.02,and the Dy^3＋ content was 0.03,the afterglow property was the best,which was a good choice for the preparation of the luminescent materials for luminous fiber.

关 键 词：夜光纤维 发光材料 Eu2+ Dy3+ 掺量 

分 类 号：O175[理学—数学]