Quantized Absorption Strength of Multi-Exciton Quantum Dots |
K. Wójcik, A. Grodecka and A. Wójs
Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland |
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Received: 17 06 2006; |
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. |
DOI: 10.12693/APhysPolA.110.423 PACS numbers: 73.22.-f, 78.67.Hc, 71.35.-y |