Abstract
We present an experimental and theoretical study of the polarized PL spectrum of single semiconductor quantum dots in various charge states. We compare our polarization sensitive spectral measurements with a novel many-carrier theoretical model. The model considers both the isotropic and anisotropic exchange interactions between all participating electron-hole pairs. We demonstrate that lines emanating from evenly charged states are linearly polarized. Their measured polarization direction does not necessarily coincide with the traditional crystallographic direction. It depends on the shells of the single carriers which participate in the recombination process. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original language | English |
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Title of host publication | Physica statussolidi c - Current topics in solid state physics |
Subtitle of host publication | Special Issue: Proceedings of the 10th International Conference on Optics of Excitons in Confined Systems, Sep 10-13, 2007, Messina, ITALY |
Editors | M Stutzmann |
Place of Publication | WEINHEIM |
Publisher | Wiley |
Pages | 2490-2494 |
Number of pages | 5 |
Volume | 5 |
Edition | 7 |
DOIs | |
Publication status | Published - 2008 |
Event | International Conference on Optics of Excitons in Confined Systems - Messina Duration: 10 Sept 2007 → 13 Sept 2007 Conference number: 10 |
Conference
Conference | International Conference on Optics of Excitons in Confined Systems |
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City | Messina |
Period | 10/09/07 → 13/09/07 |