Quantized Absorption Strength of Multi-Exciton Quantum Dots

• Authors: K. Wójcik , A. Grodecka , A. Wójs
• Languages of publication: EN

Abstracts

EN

Energy and absorption/recombination spectra of up to two electron-hole pairs confined in a spherical quantum dot are studied numerically as a function of dot radius (i.e., confinement volume). The transition between fermionic and bosonic behavior of the confined excitons is identified in coincidence with enhancement of low-energy absorption strength.

Keywords

EN

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

Discipline

• 73.22.-f: Electronic structure of nanoscale materials and related systems
• 78.67.Hc: Quantum dots
• 71.35.-y: Excitons and related phenomena

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 110
• Issue: 3
• Pages: 423-428

Dates

published

2006-09

received

2006-06-17

Contributors

author

K. Wójcik

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

author

A. Grodecka

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

author

A. Wójs

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

References

• 1. S. Okumura, T. Ogawa, Phys. Rev. B, 65, 035105, 2002
• 2. M. Combescot, O. Betbeder-Matibet, Europhys. Lett., 59, 579, 2002
• 3. L.V. Keldysh, A.N. Kozlov, Zh. Eksp. Teor. Fiz., 54, 978, 68 [Sov. Phys. JETP, 27, 521, 1968]
• 4. E. Hanamura, H. Haug, Phys. Rep., 33, 209, 1977
• 5. L.V. Butov, A.C. Gossard, D.S. Chemla, Nature, 418, 751, 2002
• 6. L. Jacak, P. Hawrylak, A. Wójs, Quantum Dots, Springer, Berlin 1998
• 7. A. Wójs, P. Hawrylak, Solid State Commun., 100, 487, 1996
• 8. S. Raymond, S. Fafard, P. Poole, A. Wójs, P. Hawrylak, S. Charbonneau, D. Leonard, R. Leon, P.M. Petroff, J.L. Merz, Phys. Rev. B, 54, 11548, 1996
• 9. P. Podemski, G. Sek, R. Kudrawiec, A. Wójs, J. Misiewicz, B. Alloing, L.H. Li, A. Fiore, A. Somers, J.P. Reithmaier, A. Forchel, to be published

Identifiers

DOI

10.12693/APhysPolA.110.423