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1.3微米发光自组织InAs/GaAs量子点的电致发光研究
Authors
刘金龙
周大勇
+5 more
孔云川
封松林
澜清
牛智川
苗振华
Publication date
1 January 2002
Publisher
Abstract
用优化的MBE参数生长了1.3μm发光的InAs/GaAs量子点材料,并制成发光二极管,对不同温度和有源区长度下样品的电致发光谱进行了细致的研究。观察到两个明显的电致发光峰,分别对应于量子点基态和激发态的辐射复合发光。实验表明,由于能态填充效应的影响,适当增大量子点发光器件有源区长度,更有利于获得基态的光发射。这个结果提供了一种控制和调节InAs/GaAs量子点发光二极管和激光器的工作波长的方法
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Last time updated on 15/03/2019