Title: One-dimensional J-aggregates: Dependence of the properties of the exciton band on the model of the intermolecular coupling
Authors: Van der Auweraer, Mark ×
Scheblykin, I #
Issue Date: Jan-2002
Publisher: Elsevier science bv
Series Title: Chemical physics vol:275 issue:1-3 pages:285-306
Abstract: The spectral properties of one-dimensional thiacarbocyanine dye aggregates were simulated by the combination of exciton interaction with a diagonal energetic disorder. Contrary to previous models incorporating disorder, the exciton interaction was calculated using the transition densities obtained form PPP-wave functions and interactions between all molecules were considered. The effects of the aggregate size, non-nearest neighbor interactions, diagonal disorder and to some extent exciton phonon coupling on the spectral position of the maxima, the FWHM of the spectra and the superradiance are investigated for H- and J-aggregates at 298 and 20 K. At 298 K the experimental properties of H-aggregates and J-aggregates of 3,3'-disulfopropyl-5,5'-dichloro-carbocyanine with I molecule per unit cell are compared to the simulations. (C) 2002 Elsevier Science B.V. All rights reserved.
ISSN: 0301-0104
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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