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Enhanced exciton–LO phonon coupling in doped quantum dots |
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| Authors: | J. -N. Isaia A. Babinski R. Ferreira L. -A. de Vaulchier M. Potemski Y. Guldner J. -M. Gerard |
| Affiliation: | a Laboratorie de Physique, LPMC ENS, 24 Rue Lhomond, Paris 75005, France;b LCMI-25, Av. des Martyrs, Grenoble 38042, France;c LPS-CEA, 17 Av. des Martyrs, Grenoble, Cedex 9 38054, France |
| Abstract: | We present photoluminescence measurements under strong magnetic field done on a sample with charged (n-doped) quantum dots. We have shown that the broadening of the luminescence line does not give a measure of the QDs size dispersion, and that the coupling of electron/hole pairs with LO phonons is greatly enhanced, because of the presence of the ionised impurities nearby the charged dots. |
| Keywords: | Author Keywords: Quantum dots Optical properties Doping |
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