发光学报, 2013, 34 (10): 1270, 网络出版: 2013-10-24
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/Zn0.85Mg0.15O Quantum Wells Pumped by Large Beam Current
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。
Abstract
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.
尚开, 张振中, 李炳辉, 徐海阳, 张立功, 赵东旭, 刘雷, 王双鹏, 申德振. 电子束泵浦氧化锌基量子阱的斯塔克效应[J]. 发光学报, 2013, 34(10): 1270. SHANG Kai, ZHANG Zhen-zhong, LI Bing-hui, XU Hai-yang, ZHANG Li-gong, ZHAO Dong-xu, LIU Lei, WANG Shuang-peng, SHEN De-zhen. Quantum-confined Stark Effects in Cathodoluminescence of ZnO/Zn0.85Mg0.15O Quantum Wells Pumped by Large Beam Current[J]. Chinese Journal of Luminescence, 2013, 34(10): 1270.
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