Abstract
The influence of the quantum dot (QD) asymmetry on the emission of one and two exciton states in the same single QD has been studied. A unified experimental and theoretical picture of the impact of electron–hole exchange interaction on the fine structure and the polarization properties of optical transitions in QDs with C2v symmetry is obtained. The relaxation time between bright exciton levels has been found to be much longer than exciton lifetime.
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