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Direct observation of rapid discrete spectral dynamics in single colloidal CdSe-CdS core-shell quantum dots.
Phys. Rev. Lett. 111:177401 (2013)
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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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Sprache
englisch
Veröffentlichungsjahr
2013
HGF-Berichtsjahr
2013
ISSN (print) / ISBN
0031-9007
e-ISSN
1079-7114
Zeitschrift
Physical Review Letters
Quellenangaben
Band: 111,
Heft: 17,
Artikelnummer: 177401
Verlag
American Physical Society (APS)
Begutachtungsstatus
Peer reviewed
Institut(e)
Helmholtz Pioneer Campus (HPC)
PubMed ID
24206518
Erfassungsdatum
2019-01-21