Two color blinking of single strain-induced GaAs quantum dots

被引：37

作者：

Bertram, D ^{[1
]}

Hanna, MC ^{[1
]}

Nozik, AJ ^{[1
]}

机构：

[1] Natl Renewable Energy Lab, Golden, CO 80401 USA

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 18期

关键词：

D O I：

10.1063/1.123932

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this letter we report on a temporal instability in the ground and excited state luminescence of a single strain-induced quantum dot. Using a microscopic photoluminescence technique, we record spectra from a single strain-induced quantum dot in the GaAs/(AlGa)As material system. On a time scale of seconds the luminescence shows an increase and decrease in intensity with an increase of the ground state luminescence correlating with a decrease in the excited state luminescence intensity and vice versa. We term the observed effect two color blinking. (C) 1999 American Institute of Physics. [S0003-6951(99)02318-9].

引用

页码：2666 / 2668

页数：3

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