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.

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收藏

页码：31 / 34

页数：4

相关论文

共 20 条

[1] Fine structure of the trion triplet state in a single self-assembled semiconductor quantum dot [J].

Akimov, IA ;

Hundt, A ;

Flissikowski, T ;

Henneberger, F .

APPLIED PHYSICS LETTERS, 2002, 81 (25) :4730-4732

[2] Exciton and biexciton fine structure in single elongated islands grown on a vicinal surface [J].

Besombes, L ;

Kheng, K ;

Martrou, D .

PHYSICAL REVIEW LETTERS, 2000, 85 (02) :425-428

[3] SHARP-LINE PHOTOLUMINESCENCE AND 2-PHOTON ABSORPTION OF ZERO-DIMENSIONAL BIEXCITONS IN A GAAS/ALGAAS STRUCTURE [J].

BRUNNER, K ;

ABSTREITER, G ;

BOHM, G ;

TRANKLE, G ;

WEIMANN, G .

PHYSICAL REVIEW LETTERS, 1994, 73 (08) :1138-1141

[4] Multiexciton spectroscopy of a single self-assembled quantum dot [J].

Dekel, E ;

Gershoni, D ;

Ehrenfreund, E ;

Spektor, D ;

Garcia, JM ;

Petroff, PM .

PHYSICAL REVIEW LETTERS, 1998, 80 (22) :4991-4994

[5] SPECTROSCOPY OF QUANTUM LEVELS IN CHARGE-TUNABLE INGAAS QUANTUM DOTS [J].

DREXLER, H ;

LEONARD, D ;

HANSEN, W ;

KOTTHAUS, JP ;

PETROFF, PM .

PHYSICAL REVIEW LETTERS, 1994, 73 (16) :2252-2255

[6] Photon beats from a single semiconductor quantum dot [J].

Flissikowski, T ;

Hundt, A ;

Lowisch, M ;

Rabe, M ;

Henneberger, F .

PHYSICAL REVIEW LETTERS, 2001, 86 (14) :3172-3175

[7] Fine structure splitting in the optical spectra of single GaAs quantum dots [J].

Gammon, D ;

Snow, ES ;

Shanabrook, BV ;

Katzer, DS ;

Park, D .

PHYSICAL REVIEW LETTERS, 1996, 76 (16) :3005-3008

[8] Few-particle effects in semiconductor quantum dots: Observation of multicharged excitons [J].

Hartmann, A ;

Ducommun, Y ;

Kapon, E ;

Hohenester, U ;

Molinari, E .

PHYSICAL REVIEW LETTERS, 2000, 84 (24) :5648-5651

[9] Excitonic absorption in a quantum dot [J].

Hawrylak, P ;

Narvaez, GA ;

Bayer, M ;

Forchel, A .

PHYSICAL REVIEW LETTERS, 2000, 85 (02) :389-392

[10] Fine structure of biexciton emission in symmetric and asymmetric CdSe/ZnSe single quantum dots [J].

Kulakovskii, VD ;

Bacher, G ;

Weigand, R ;

Kümmell, T ;

Forchel, A ;

Borovitskaya, E ;

Leonardi, K ;

Hommel, D .

PHYSICAL REVIEW LETTERS, 1999, 82 (08) :1780-1783