Journal of Fluorescence

, Volume 4, Issue 1, pp 57–59 | Cite as

Excition dynamics in the J-aggregates of a carbocyanine dye

  • J. Moll
  • S. Daehne
  • J. R. Durrant
  • D. A. Wiersma
Fluorophore Photophysics


We report on the exciton dynamics in the J-aggregating dye 5,5′, 6,6′-tetrachloro-1,1′-diethyl-3,3′-di(4-sulfobutyl)-benzimidazolocarbocyanine which is known readily to form J-aggregates, even at room temperature and at a low concentration. We performed a series of time-correlated singlephoton-counting experiments at different emission wavelengths and at different temperatures in the range between 1.5 and 125 K. Additionally, the temperature dependence of the relative fluorescence quantum yield was determined.

Key words

Exciton dynamics J-aggregates carbocyanine dye 


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Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • J. Moll
    • 1
  • S. Daehne
    • 1
  • J. R. Durrant
    • 2
  • D. A. Wiersma
    • 2
  1. 1.Laboratory for Time-Resolved SpectroscopyFederal Institute for Matcrials Research and TestingBerlinGermany
  2. 2.Department of ChemistryUniversity of GroningenGroningenThe Netherlands

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