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Temperature dependence of exciton transfer in hybrid quantum well/nanocrystal heterostructures

By Stefan Rohrmoser, Julia Baldauf, Richard T. Harley, Pavlos G. Lagoudakis, Sameer Sapra, Alexander Eychmueller and Ian M. Watson

Abstract

The authors investigate the temperature dependence of exciton transfer from a single InGaN quantum well (QW) donor to colloidal CdS nanocrystal quantum dot acceptors and obtain an optimum transfer efficiency of 65% at 60 K. Time and spectrally resolved measurements reveal that the transfer efficiency is dominated by the interplay between exciton localization and nonradiative recombination intrinsic to the QW

Topics: QC
Year: 2007
OAI identifier: oai:eprints.soton.ac.uk:50341
Provided by: e-Prints Soton
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