Measurement of the radiative and non-radiative decay rates of single CdSe nanocrystals through controlled modification of their spontaneous emission

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dc.creatorBrokmann, X.
dc.creatorCoolen, L.
dc.creatorDahan, Maxime
dc.creatorHermier, J. P.
dc.date2004-08-04
dc.date.accessioned2026-07-07T12:52:05Z
dc.date.available2026-07-07T12:52:05Z
dc.descriptionWe present a simple method to measure the radiative and non-radiative recombination rates of individual fluorescent emitters at room temperature. By placing a single molecule successively close and far from a dielectric interface and simultaneously measuring its photoluminescence decay and its orientation, both the radiative and non-radiative recombination rates can be determined. For CdSe nanocrystals, our results demonstrate that the fluorescence quantum efficiency, determined at the single molecule level, is 98% in average, far above the value expected from conventional ensemble experiments. The bi-dimensionnal nature of the transition dipole is also directly evidenced from a single particle measurement.
dc.descriptionto appear in PRL
dc.identifierhttps://arxiv.org/abs/cond-mat/0408087
dc.identifierhttp://arxiv.org/abs/cond-mat/0408087
dc.identifierPhys. Rev. Lett. 93, 107403 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.107403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223189
dc.subjectOther Condensed Matter
dc.titleMeasurement of the radiative and non-radiative decay rates of single CdSe nanocrystals through controlled modification of their spontaneous emission
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