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Direct Observation of Excimer-Mediated Intramolecular Electron Transfer in a Cofacially-Stacked Perylene Bisimide Pair

Title
Direct Observation of Excimer-Mediated Intramolecular Electron Transfer in a Cofacially-Stacked Perylene Bisimide Pair
Authors
Sung, JooyoungNowak-Krol, AgnieszkaSchlosser, FelixFimmel, BenjaminKim, WoojaeKim, DonghoWuerthner, Frank
DGIST Authors
Sung, Jooyoung
Issue Date
2016-07
Citation
Journal of the American Chemical Society, 138(29), 9029-9032
Type
Article
Article Type
Article
Keywords
CHARGE SEPARATIONEXCITON DYNAMICSSINGLET FISSIONDIMERAGGREGATE
ISSN
0002-7863
Abstract
We have elucidated excimer-mediated intramolecular electron transfer in cofacially stacked PBIs tethered by two phenylene-butadiynylene loops. The electron transfer between energetically equivalent PBIs is revealed by the simultaneous observation of the PBI radical anion and cation bands in the transient absorption spectra. The fluorescence decay time of the excimer states is in good agreement with the rise time of PBI radical bands in transient absorption spectra suggesting that the electron transfer dynamics proceed via the excimer state. We can conclude that the excimer state effectuates the efficient charge transfer in the cofacially stacked PBI dimer.
URI
http://hdl.handle.net/20.500.11750/14015
DOI
10.1021/jacs.6b04591
Publisher
American Chemical Society
Related Researcher
  • Author Sung, Jooyoung FemtoLab for Advanced Energy Materials
  • Research Interests Nanostructured Semiconductor Materials; Advanced Organic Materials; Optoelectronic Properties; Time/Space-resolved Spectroscopy
Files:
There are no files associated with this item.
Collection:
Department of Physics and ChemistryETC1. Journal Articles
Department of Physics and ChemistryFemtoLab for Advanced Energy Materials1. Journal Articles


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