Comparison of Electron Acceleration Ability of SiO_2 and ZnS fromZnS∶Er Transient Electroluminescence  

作　　者：张福俊 徐征 刘玲 孟立建 

机构地区：[1]Key Laboratory of Luminescence and Optical Information, Ministry of Education Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China [2]Key Laboratory of Luminescence and Optical Information, Ministry of Education Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China,Departmento de Fisica Instituto Superior de Engenharia do Porto 4200-072 Porto Protugal [3]Departmento de Fisica Instituto Superior de Engenharia do Porto 4200-072 Porto Protugal

出　　处：《Journal of Rare Earths》2006年第3期298-301,共4页稀土学报（英文版）

基　　金：ProjectsupportedbyNSFC(10374001,10434030and60576016),StateKeyProjectofBasicResearch(2003CB314707),theExcellentDoctor'sScienceandTechnologyInnovationFoundationofBeijingJiaotongUniversity(48011)andPandengPlanningofBeijingJiaotongUniversity(296)

摘　　要：The acceleration ability of electrons in SiO2 and ZnS was compared through the variation of emission intensity based on ZnS ： Er electroluminescence during the reverse of polarity of sinusoidal voltage. In order to avoid the influence of work function of electrode, cathodal and anodal materials were ITO （indium tin oxide）. The ratio of maximum emission intensity under positive and negative half period is 2.18. This result demonstrates that the electron acceleration ability of SiO2 is 2.18 times stronger than that of ZnS.The acceleration ability of electrons in SiO2 and ZnS was compared through the variation of emission intensity based on ZnS ： Er electroluminescence during the reverse of polarity of sinusoidal voltage. In order to avoid the influence of work function of electrode, cathodal and anodal materials were ITO （indium tin oxide）. The ratio of maximum emission intensity under positive and negative half period is 2.18. This result demonstrates that the electron acceleration ability of SiO2 is 2.18 times stronger than that of ZnS.

关 键 词：electron acceleration rare earths 

分 类 号：O482.31[理学—固体物理]