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Literature DB >> 16608295

Continuous distribution of emission states from single CdSe/ZnS quantum dots.

Kai Zhang¹, Hauyee Chang, Aihua Fu, A Paul Alivisatos, Haw Yang.

Abstract

The photoluminescence dynamics of colloidal CdSe/ZnS/streptavidin quantum dots were studied using time-resolved single-molecule spectroscopy. Statistical tests of the photon-counting data suggested that the simple "on/off" discrete state model is inconsistent with experimental results. Instead, a continuous emission state distribution model was found to be more appropriate. Autocorrelation analysis of lifetime and intensity fluctuations showed a nonlinear correlation between them. These results were consistent with the model that charged quantum dots were also emissive, and that time-dependent charge migration gave rise to the observed photoluminescence dynamics.

Entities: Chemical

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Year: 2006 PMID： 16608295 DOI： 10.1021/nl060483q

Source DB: PubMed Journal: Nano Lett ISSN： 1530-6984 Impact factor: 11.189

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Cited

18 in total

1. Two types of luminescence blinking revealed by spectroelectrochemistry of single quantum dots.

Authors: Christophe Galland; Yagnaseni Ghosh; Andrea Steinbrück; Milan Sykora; Jennifer A Hollingsworth; Victor I Klimov; Han Htoon
Journal: Nature Date: 2011-11-09 Impact factor: 49.962

Review 2. Fluorescence lifetime measurements and biological imaging.

Authors: Mikhail Y Berezin; Samuel Achilefu
Journal: Chem Rev Date: 2010-05-12 Impact factor: 60.622

3. Strongly emissive individual DNA-encapsulated Ag nanoclusters as single-molecule fluorophores.

Authors: Tom Vosch; Yasuko Antoku; Jung-Cheng Hsiang; Chris I Richards; Jose I Gonzalez; Robert M Dickson
Journal: Proc Natl Acad Sci U S A Date: 2007-05-22 Impact factor: 11.205

4. Evidence for a diffusion-controlled mechanism for fluorescence blinking of colloidal quantum dots.

Authors: Matthew Pelton; Glenna Smith; Norbert F Scherer; Rudolph A Marcus
Journal: Proc Natl Acad Sci U S A Date: 2007-08-24 Impact factor: 11.205

5. Observation and control of blinking nitrogen-vacancy centres in discrete nanodiamonds.

Authors: C Bradac; T Gaebel; N Naidoo; M J Sellars; J Twamley; L J Brown; A S Barnard; T Plakhotnik; A V Zvyagin; J R Rabeau
Journal: Nat Nanotechnol Date: 2010-04-11 Impact factor: 39.213

6. Out-of-Phase Imaging after Optical Modulation (OPIOM) for Multiplexed Fluorescence Imaging Under Adverse Optical Conditions.

Authors: Raja Chouket; Ruikang Zhang; Agnès Pellissier-Tanon; Annie Lemarchand; Agathe Espagne; Thomas Le Saux; Ludovic Jullien
Journal: Methods Mol Biol Date: 2021

Continuous distribution of emission states from single CdSe/ZnS quantum dots.

1. Two types of luminescence blinking revealed by spectroelectrochemistry of single quantum dots.

Review 2. Fluorescence lifetime measurements and biological imaging.

3. Strongly emissive individual DNA-encapsulated Ag nanoclusters as single-molecule fluorophores.

4. Evidence for a diffusion-controlled mechanism for fluorescence blinking of colloidal quantum dots.

5. Observation and control of blinking nitrogen-vacancy centres in discrete nanodiamonds.

6. Out-of-Phase Imaging after Optical Modulation (OPIOM) for Multiplexed Fluorescence Imaging Under Adverse Optical Conditions.

7. Correlated Single Quantum Dot Blinking and Interfacial Electron Transfer Dynamics.

8. Influence of the Inner-Shell Architecture on Quantum Yield and Blinking Dynamics in Core/Multishell Quantum Dots.

9. Confocal, three-dimensional tracking of individual quantum dots in high-background environments.

10. Hidden markov analysis of short single molecule intensity trajectories.