Energy and Optical Absorption Spectra of Multiply Charged Anisotropic Quantum Boxes

• Authors: A. Trojnar , T. Małachowski , A. Wójs
• Languages of publication: EN

Abstracts

EN

Using a simple model of a two-dimensional rectangular quantum box we study the effects of size and anisotropy on the energy and photoluminescence spectra of neutral and charged quantum dots. The competition of symmetries and energy/length scales of the free exciton or trion and of the confining potential is analyzed. The numerical calculations consisted of the diagonalization of the few-electron-hole Hamiltonian matrices in the full configuration-interaction basis, with the simultaneous resolution of the conserved orbital and spin quantum numbers.

Keywords

EN

73.22.-f; 78.67.Hc; 71.35.-y; 71.35.Pq

Discipline

• 73.22.-f: Electronic structure of nanoscale materials and related systems
• 78.67.Hc: Quantum dots
• 71.35.Pq: Charged excitons (trions)
• 71.35.-y: Excitons and related phenomena

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2007
• Volume: 112
• Issue: 2
• Pages: 173-176

Dates

published

2007-08

received

2007-06-09

Contributors

author

A. Trojnar

• Institute of Physics, Wrocław University of Technology, Wybrzeżze Wyspiańskiego 27, 50-370 Wrocław, Poland

author

T. Małachowski

• Institute of Physics, Wrocław University of Technology, Wybrzeżze Wyspiańskiego 27, 50-370 Wrocław, Poland

author

A. Wójs

• Institute of Physics, Wrocław University of Technology, Wybrzeżze Wyspiańskiego 27, 50-370 Wrocław, Poland

References

• 1. L. Jacak, P. Hawrylak, A. Wójs, Quantum Dots, Springer, Berlin 1998
• 2. G.W. Bryant, Phys. Rev. B, 37, 8763, 1988
• 3. A. Barenco, M.A. Dupertuis, Phys. Rev. B, 52, 2766, 1995
• 4. G.W. Bryant, Phys. Rev. B, 31, 7812, 1985
• 5. A. Wójs, J.J. Quinn, Phys. Rev. B, 75, 085318, 2007

Identifiers

DOI

10.12693/APhysPolA.112.173