Room-temperature random telegraph noise in luminescence from macroscopic InGaN clusters

被引：14
|
作者：
Aoki, T
Nishikawa, Y
Kuwata-Gonokami, M
机构：
[1] Univ Tokyo, Fac Engn, Dept Appl Phys, Bunkyo Ku, Tokyo 113, Japan
[2] JST, ERATO, Cooperat Excitat Project, Takatsu Ku, Kanagawa 2130012, Japan
来源：
APPLIED PHYSICS LETTERS | 2001年 / 78卷 / 08期
关键词：
D O I：
10.1063/1.1346630
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on photoluminescence properties of individual macroscopically sized InGaN clusters that were formed in InGaN multiple quantum wells. Phase separation in InGaN results in the formation of clusters with a size of 1-2 mum with three different indium compositions. A small fraction (one in 100-1000) of the clusters shows random telegraph noise in luminescence at room temperature. Superlinear dependence of the luminescence switching rate on excitation intensity indicates that the switching is induced by the cooperation of multiple carriers. (C) 2001 American Institute of Physics.
引用
收藏
页码：1065 / 1067
页数：3
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