Electronic excitations and longitudinal optical phonon modes of self-assembled CdSe quantum dots revealed by microprobe studies

被引：55

作者：

Lowisch, M ^{[1
]}

Rabe, M ^{[1
]}

Kreller, F ^{[1
]}

Henneberger, F ^{[1
]}

机构：

[1] Humboldt Univ, Inst Phys, D-10115 Berlin, Germany

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 17期

关键词：

D O I：

10.1063/1.123016

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electronic states of self-assembled CdSe quantum dots and the longitudinal optical phonon mediated energy relaxation among these states are investigated. Measurements with microprobe resolution demonstrate that each quantum dot develops specific phonon modes. There is no evidence for a well-defined phonon bottleneck in the intra-quantum-dot relaxation. We observe single quantum-dot bi-exciton emission and bi-exciton binding energies exceeding 20 meV. (C) 1999 American Institute of Physics. [S0003-6951(99)02917-4].

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页码：2489 / 2491

页数：3

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