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Exciton energies and transfer matrix-elements for the nanostar (a perylene chromophore attached to a poly-phenylacetylene dendrimer) are obtained by computing the linear absorption of several segments using the collective electronic oscillator (CEO) approach. Our results allow a first-principles calculation of an effective Frenkel exciton Hamiltonian which can describe the optical properties as well as energy transfer and funneling in this artificial antenna complex.
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Minami et al. (2000) studied this question.
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