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Inhibited carrier transfer in ensembles of isolated quantum dots

Lobo, C; Leon, R; Marcinkevicius, S; Yang, W; Sercel, P C; Liao, X Z; Zou, Jin; Cockayne, David John Hugh


We report significant differences in the temperature-dependent and time-resolved photoluminescence (PL) from low and high surface density InxGa1-xAs/GaAs quantum dots (QD's). QD's in high densities are found to exhibit an Arrhenius dependence of the PL intensity, while low-density (isolated) QD's display more complex temperature-dependent behavior. The PL temperature dependence of high density QD samples is attributed to carrier thermal emission and recapture into neighboring QD's. Conversely,...[Show more]

CollectionsANU Research Publications
Date published: 1999
Type: Journal article
Source: Physical Review B


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