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Comparative theoretical studies on exciton dynamics in biological and artificial chromophore complexes

Authors
Journal
Journal of Luminescence
0022-2313
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/s0022-2313(99)00418-4
Keywords
  • Chromophore Complexes
  • Ultrafast Exciton Dynamics
  • Density Matrix (Theory)

Abstract

Abstract Dissipative excitation energy transfer in chromophore complexes (CC) is studied theoretically within the Frenkel-exciton model and in utilizing the density matrix theory. The obtained density matrix is used to compute the cw-absorption via a time-dependent formulation of optical spectra. Structural and energetic disorder is accounted for within a numerical Monte Carlo treatment. The approach is used to interpret recent measurements on Langmuir–Blodgett-layers (LB) formed of behenic acid molecules and doped by pheophorbide-a. Additionally, absorption spectra obtained for photosynthetic antenna systems are simulated.

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