电子束泵浦氧化锌基量子阱的斯塔克效应  

Quantum-confined Stark Effects in Cathodoluminescence of ZnO /Zn_(0. 85)Mg_(0. 15)O Quantum Wells Pumped by Large Beam Current

作　　者：尚开[1,2] 张振中[1] 李炳辉[1] 徐海阳[3] 张立功[1] 赵东旭[1] 刘雷[1] 王双鹏[1] 申德振[1] 

机构地区：[1]发光学及应用国家重点实验室中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100049 [3]东北师范大学物理学院,吉林长春130024

出　　处：《发光学报》2013年第10期1270-1274,共5页Chinese Journal of Luminescence

基　　金：国家自然科学基金(21100146);国家'973计划'(2011CB302006;2011CB302002)资助项目

摘　　要：在不同功率密度的电子束泵浦条件下,对ZnO/Zn0.85Mg0.15O非对称双量子阱的荧光光谱进行了研究,并采用蒙特卡罗仿真模拟对测试结果进行了分析。模拟的结果和实验结果高度吻合。观测到了不随穿透深度变化的阱区发光峰红移,证明表面电荷积累引起了量子限域斯塔克效应。Cathodoluminescence( CL) of ZnO /Zn0. 85Mg0. 15O asymmetric double-quantum-well structure under various excitation conditions was studied. A Monte Carlo simulation CL generation profiles was adopted. An excellent agreement between the experimental CL emissions and theoretically simulations was observed. A marked red shift of the emission peak was clearly observed under large beam current excitation,which was attributed to quantum-confined Stark effect caused by electron accumulation on the sample surface.

关 键 词：ZNO 量子阱 电子束泵浦 量子限域斯塔克效应 

分 类 号：O482.31[理学—固体物理]