Enhanced exciton-LO phonon coupling in doped quantum dots

Isaia, J. N.; Babinski, A.; Ferreira, R.; de Vaulchier, L. A.; Potemski, M.; Guldner, Y.; Gérard, J. M.

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Enhanced exciton-LO phonon coupling in doped quantum dots

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Babinski, A.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Potemski, M.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Isaia, J. N., Babinski, A., Ferreira, R., de Vaulchier, L. A., Potemski, M., Guldner, Y., et al. (2004). Enhanced exciton-LO phonon coupling in doped quantum dots. Physica E, 21(2-4), 400-404.

Cite as: https://hdl.handle.net/21.11116/0000-000E-FF02-1

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. (C) 2003 Elsevier B.V. All
rights reserved.