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Ivan Scheblykin. Portrait.

Ivan Scheblykin

Professor

Ivan Scheblykin. Portrait.

Collective Fluorescence Blinking in Linear J-Aggregates Assisted by Long-Distance Exciton Migration.

Author

  • Hongzhen Lin
  • Rafael Camacho Dejay
  • Yuxi Tian
  • Theo E. Kaiser
  • Frank Würthner
  • Ivan Scheblykin

Summary, in English

Fluorescence blinking corresponding to collective quenching of up to 100 dye monomers is reported for individual J-aggregates of a perylene bisimide (PBI) dye. This implies an exciton diffusion length up to 70 nm in these one-dimensional assemblies. The number of quenched monomers was directly measured by comparing the fluorescence brightness of the J-aggregates with that of noncoupled PBI molecules. This brightness analysis technique is useful for unraveling photophysical parameters of any individual fluorescent nanosystem.

Department/s

  • Chemical Physics

Publishing year

2010

Language

English

Pages

620-626

Publication/Series

Nano Letters

Volume

10

Issue

2

Document type

Journal article

Publisher

The American Chemical Society (ACS)

Topic

  • Nano-technology

Keywords

  • Single molecule spectroscopy
  • fluorescence quantum yield
  • fluorescence brightness
  • energy migration
  • J-aggregate

Status

Published

ISBN/ISSN/Other

  • ISSN: 1530-6992