Direct Observation of Electron-to-Hole Energy Transfer in CdSe Quantum Dots

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Direct Observation of Electron-to-Hole Energy Transfer in CdSe Quantum Dots

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dc.contributor.author Hendry, Euan en_GB
dc.contributor.author Koeberg, Mattijs en_GB
dc.contributor.author Wang, F. en_GB
dc.contributor.author Zhang, H. en_GB
dc.contributor.author de Mello Donegá, C. en_GB
dc.contributor.author Vanmaekelbergh, D. en_GB
dc.contributor.author Bonn, Mischa en_GB
dc.contributor.department University of Exeter (at the time of publication Euan Hendry was affiliated to Leiden University and FOM Institute for Atomic and Molecular Physics); Leiden University; Columbia University; University of Amsterdam; Utrecht University en_GB
dc.date.accessioned 2008-07-25T10:55:46Z en_GB
dc.date.accessioned 2011-01-25T11:55:10Z en_US
dc.date.accessioned 2013-03-20T13:24:59Z
dc.date.issued 2006 en_GB
dc.description.abstract We independently determine the subpicosecond cooling rates for holes and electrons in CdSe quantum dots. Time-resolved luminescence and terahertz spectroscopy reveal that the rate of hole cooling, following photoexcitation of the quantum dots, depends critically on the electron excess energy. This constitutes the first direct, quantitative measurement of electron-to-hole energy transfer, the hypothesis behind the Auger cooling mechanism proposed in quantum dots, which is found to occur on a 1±0.15 ps time scale. en_GB
dc.identifier.citation 96 (5), article 057408 en_GB
dc.identifier.doi 10.1103/PhysRevLett.96.057408 en_GB
dc.identifier.uri http://hdl.handle.net/10036/33213 en_GB
dc.language.iso en en_GB
dc.publisher American Physical Society en_GB
dc.relation.url http://dx.doi.org/10.1103/PhysRevLett.96.057408 en_GB
dc.relation.url http://link.aps.org/abstract/PRL/v96/e057408 en_GB
dc.subject cadmium compounds en_GB
dc.subject II-VI semiconductors en_GB
dc.subject wide band gap semiconductors en_GB
dc.subject time resolved spectra en_GB
dc.subject photoluminescence en_GB
dc.subject semiconductor quantum dots en_GB
dc.subject electron-hole recombination en_GB
dc.title Direct Observation of Electron-to-Hole Energy Transfer in CdSe Quantum Dots en_GB
dc.type Article en_GB
dc.date.available 2008-07-25T10:55:46Z en_GB
dc.date.available 2011-01-25T11:55:10Z en_US
dc.date.available 2013-03-20T13:24:59Z
dc.identifier.issn 0031-9007 en_GB
dc.identifier.issn 1079-7114 en_GB
dc.description Euan Hendry, Mattijs Koeberg, F. Wang, H. Zhang, C. de Mello Donegá, D. Vanmaekelbergh, and Mischa Bonn, Physical Review Letters, Vol. 96, article 057408 (2006). "Copyright © 2006 by the American Physical Society." en_GB
dc.identifier.journal Physical Review Letters en_GB


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