Excition dynamics in the J-aggregates of a carbocyanine dye |
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Authors: | J. Moll S. Daehne J. R. Durrant D. A. Wiersma |
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Affiliation: | (1) Laboratory for Time-Resolved Spectroscopy, Federal Institute for Matcrials Research and Testing, Rudower Chausse 5, D-12489 Berlin, Germany;(2) Department of Chemistry, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, The Netherlands |
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Abstract: | 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. |
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Keywords: | Exciton dynamics J-aggregates carbocyanine dye |
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