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Picosecond Time-Resolved Bleaching Dynamics of Self-Assembled Quantum Dots

Bogaart, E W; Haverkort, J E M; Mano, T; Notzel, Richard; Wolter, Joachim; Lever McGowan, Penelope; Jagadish, Chennupati; Tan, Hark Hoe


Picosecond bleaching dynamics of vertically stacked self-assembled quantum dots (QDs) is investigated by means of time-resolved pump-probe differential reflection spectroscopy (TRDR) at room temperature (RT). We observe that the absorption spectrum, which represents the QD density of states at RT, is strongly shifted with respect to the photoluminescence spectrum. This shift can not be interpreted by carrier emission and re-trapping alone. TRDR allows us to study the dynamics of the pump...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: IEEE Transactions on Nanotechnology
DOI: 10.1109/TNANO.2004.828572


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