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Beyler, A.P.* ; Marshall, L.F.* ; Cui, J. ; Brokmann, X.* ; Bawendi, M.G.*

Direct observation of rapid discrete spectral dynamics in single colloidal CdSe-CdS core-shell quantum dots.

Phys. Rev. Lett. 111:177401 (2013)

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Open Access Green as soon as Postprint is submitted to ZB.

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We measure the anomalous spectral diffusion of single colloidal quantum dots over eight temporal decades simultaneously by combining single-molecule spectroscopy and photon-correlation Fourier spectroscopy. Our technique distinguishes between discrete and continuous dynamics and directly reveals that the quasicontinuous spectral diffusion observed using conventional spectroscopy is composed of rapid, discrete spectral jumps. Despite their multiple time scales, these dynamics can be captured by a single mechanism whose parameters vary widely between dots and over time in individual dots.

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Publication type Article: Journal article

Document type Scientific Article

Corresponding Author

ISSN (print) / ISBN 0031-9007

e-ISSN 1079-7114

Journal Physical Review Letters

Quellenangaben Volume: 111, Issue: 17, Article Number: 177401

Publisher American Physical Society (APS)

Non-patent literature Publications

Reviewing status Peer reviewed

Institute(s) Helmholtz Pioneer Campus (HPC)