Energy spectrum of negatively charged single quantum dot: trion and charged biexciton states

被引：8
|
作者：
Akimov, IA [1 ]
Hundt, A [1 ]
Flissikowski, T [1 ]
Kratzert, P [1 ]
Henneberger, F [1 ]
机构：
[1] Humboldt Univ, Inst Phys, D-10115 Berlin, Germany
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2003年 / 17卷 / 1-4期
关键词：
exciton complexes; photoluminescence; quantum dots;
D O I：
10.1016/S1386-9477(02)00720-8
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We have studied the energy spectrum of negatively charged single CdSe quantum dots using two-beam photoluminescence excitation spectroscopy. We observe bleaching of the linear trion spectrum and appearance of induced absorption due to excitation of charged biexciton states. The data embody clear signatures for Pauli blocking, many-particle Coulomb interactions as well as electron-hole exchange fine structure. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：31 / 34
页数：4
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