Effects of electron correlation on the photocurrent in quantum dot infrared photodetectors

被引：4

作者：

Chang, YC

Kuo, DMT

机构：

[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[2] Univ Illinois, Mat Res Lab, Urbana, IL 61801 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 01期

关键词：

D O I：

10.1063/1.1588376

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of electron correlation on the photocurrent of self-assembled InAs/InGaAs quantum-dot infrared photodetector is studied. It is found that Coulomb interaction and level mixing in the many-body open system lead to double peaks associated with the intraband transitions involving two lowest levels of the quantum dot. Furthermore, the photocurrent displays a negative differential photoconductance due to Coulomb blockade. (C) 2003 American Institute of Physics.

引用

页码：156 / 158

页数：3

共 10 条

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