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Oleg Mirzov

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Fluorescence blinking in MEH-PPV single molecules at low temperature

Author

  • Oleg Mirzov
  • F Cichos
  • C von Borczyskowski
  • Ivan Scheblykin

Summary, in English

Fluorescence intensity transients of single molecules of the conjugated polymer poly[2-methoxy,5-(2-ethylhexyloxy)-p-phenylene-vinylene] (MEH-PPV) were studied at 15 K. Fluorescence blinking behavior was observed despite the expected low-temperature suppression of energy migration in such disordered molecular systems. Presence of the fluorescence blinking effect at 15K indicates that the single molecules possess a collapsed conformation with characteristic size of not more than several nanometers, which corresponds to only a few exciton hops over a polymer chain. (c) 2004 Elsevier B.V. All rights reserved.

Department/s

  • Chemical Physics

Publishing year

2005

Language

English

Pages

353-356

Publication/Series

Journal of Luminescence

Volume

112

Issue

1-4

Document type

Journal article

Publisher

Elsevier

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0022-2313