缺陷化学教学中的实验实例:Dy,Eu掺杂SrAl_2O_4长余辉发光材料  

On an Experiment Example for Teaching of Defect Chemistry:Eu and Dy Co-Doped SrAl_2O_4 with Long Afterglow Phosphorescence

作　　者：邹建[1] 张鹏[1] 刘昌华[1] 

机构地区：[1]西南大学化学化工学院,重庆400715

出　　处：《西南师范大学学报（自然科学版）》2013年第5期173-176,共4页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：西南大学本科实验教学改革行动计划资助项目(西校[2010]225);西南大学教育教学改革资助项目(西校[2010]451号)

摘　　要：用燃烧法制备的Dy,Eu掺杂SrAl2O4长余辉发光材料能够观察到明显的余辉效应.故以此为缺陷化学的教学实验实例,并结合缺陷化学理论,对掺杂SrAl2O4物相结构、紫外可见光谱以及荧光特性进行了分析,阐明化学缺陷对SrAl2O4的结构以及性能的影响.The paper gives an experiment example in teaching of defect chemistry for Eu and Dy co-doped SrAl2O4 with long afterglow phosphorescence.Obvious long afterglow phosphorescence can be observed for Eu and Dy co-doped SrAl2O4 synthesizing by means of combustion.The influences of chemistry defects in SrAl2O4 on its phase and energy band structure were illustrated by analyzing the results of XRD,UV-Vis and luminescence with defect chemistry.The paper can be used as supplement materials in teaching of defect chemistry to help student understand the theory of defect chemistry.

关 键 词：缺陷化学 教学 长余辉 SRAL2O4 

分 类 号：G642.1[文化科学—高等教育学]