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Suppressed Relaxation in InGaAs/GaAs Quantum Dots
Author(s) -
Born H.,
Heitz R.,
Hoffmann A.,
Guffarth F.,
Bimberg D.
Publication year - 2001
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200103)224:2<487::aid-pssb487>3.0.co;2-#
Subject(s) - quantum dot , condensed matter physics , relaxation (psychology) , optoelectronics , materials science , physics , neuroscience , psychology
Suppressed relaxation in strongly confined InGaAs/GaAs quantum dots (QDs) was investigated by resonantly excited time‐resolved photoluminescence spectroscopy. Hot exciton recombination and temperature‐dependent relaxation are demonstrated supporting multi‐phonon processes to dominate the relaxation between low‐lying states at low excitation densities.