分层优化结构的SrS:Ce TFEL器件的基本特性  

Characteristics of SrS:Ce TFEL in Layered Optimization Structure

作　　者：徐春祥[1,2,3,4] 马龙[1,2,3,4] 徐征[1,2,3,4] 娄志东 刘行仁[1,2,3,4] 

机构地区：[1]天津理工学院材料物理所 [2]中国科学院长春物理所 [3]北方交通大学物理系 [4]中国科学院激发态过程开放实验室

出　　处：《光电子．激光》1998年第1期16-18,共3页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金

摘　　要：本文采用了分层优化结构，用电子束蒸发的方法制备ＳｒＳ：ＣｅＴＦＥＬ器件，获得了明亮的蓝绿发光，测量了发光亮度，传导电荷，发光效率等基本参量与驱动电压的关系；通过发光波形的测量，讨论了ＳｒＳ：Ｃｅ的发光机理，发现这一结构中ＳｒＳ：Ｃｅ的激发机理主要表现为直接碰撞激发。SrS:Ce TFEL devices based on layered optimiaztion structure were prepared with electron beam evaporation method.The strong blue green emission originating from 2D(5d)→2F 5/2 (4f) and 2D(5d)→2F 7/2 (4f) was observed.The influences of the driving voltage on emission intensity,transfer charge and luminescent efficiency were investigated.The emission wave form indicated that derict impactexcitation was dominant mechanism for SrS:Ce TFEL in this structure.

关 键 词：分层优化 发光亮度 发光效率 平板显示器材 

分 类 号：TN141[电子电信—物理电子学]