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

dc.contributor.authorHendry, Euanen_GB
dc.contributor.authorKoeberg, Mattijsen_GB
dc.contributor.authorWang, F.en_GB
dc.contributor.authorZhang, H.en_GB
dc.contributor.authorde Mello Donegá, C.en_GB
dc.contributor.authorVanmaekelbergh, D.en_GB
dc.contributor.authorBonn, Mischaen_GB
dc.contributor.departmentUniversity 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 Universityen_GB
dc.date.accessioned2008-07-25T10:55:46Zen_GB
dc.date.accessioned2011-01-25T11:55:10Zen_GB
dc.date.accessioned2013-03-20T13:24:59Z
dc.date.issued2006-02-09en_GB
dc.description.abstractWe 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.citationVol. 96 (5), article 057408en_GB
dc.identifier.doi10.1103/PhysRevLett.96.057408en_GB
dc.identifier.urihttp://hdl.handle.net/10036/33213en_GB
dc.language.isoenen_GB
dc.publisherAmerican Physical Societyen_GB
dc.subjectcadmium compoundsen_GB
dc.subjectII-VI semiconductorsen_GB
dc.subjectwide band gap semiconductorsen_GB
dc.subjecttime resolved spectraen_GB
dc.subjectphotoluminescenceen_GB
dc.subjectsemiconductor quantum dotsen_GB
dc.subjectelectron-hole recombinationen_GB
dc.titleDirect Observation of Electron-to-Hole Energy Transfer in CdSe Quantum Dotsen_GB
dc.typeArticleen_GB
dc.date.available2008-07-25T10:55:46Zen_GB
dc.date.available2011-01-25T11:55:10Zen_GB
dc.date.available2013-03-20T13:24:59Z
dc.identifier.issn0031-9007en_GB
dc.identifier.issn1079-7114en_GB
dc.descriptionEuan 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.journalPhysical Review Lettersen_GB


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