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Raychaudhuri S, Shapir Y, Chernyak V, et al. Excitonic funneling in extended dendrimers with nonlinear and random potentials. Phys Rev Lett. 2000;85(2):282-5doi: 10.1103/PhysRevLett.85.282.
Raychaudhuri, S., Shapir, Y., Chernyak, V., & Mukamel, S. (2000). Excitonic funneling in extended dendrimers with nonlinear and random potentials. Physical review letters, 85(2), 282-5. https://doi.org/10.1103/PhysRevLett.85.282
Raychaudhuri, et al. "Excitonic funneling in extended dendrimers with nonlinear and random potentials." Physical review letters vol. 85,2 (2000): 282-5. doi: https://doi.org/10.1103/PhysRevLett.85.282
Raychaudhuri S, Shapir Y, Chernyak V, Mukamel S. Excitonic funneling in extended dendrimers with nonlinear and random potentials. Phys Rev Lett. 2000 Jul 10;85(2):282-5. doi: 10.1103/PhysRevLett.85.282. PMID: 10991263.
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Phys Rev Lett. 2000 Jul 10;85(2):282-5. doi: 10.1103/PhysRevLett.85.282.

Excitonic funneling in extended dendrimers with nonlinear and random potentials.

Physical review letters

Raychaudhuri, Shapir, Chernyak, Mukamel

Affiliations

  1. Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA.

PMID: 10991263 DOI: 10.1103/PhysRevLett.85.282

Abstract

The mean first passage time (MFPT) for photoexcitations diffusion in a funneling potential of artificial treelike light-harvesting antennas (phenylacetylene dendrimers with generation-dependent segment lengths) is computed. Effects of the nonlinearity of the realistic funneling potential and slow random solvent fluctuations considerably slow down the center-bound diffusion beyond a temperature-dependent optimal size. Diffusion on a disordered Cayley tree with a linear potential is investigated analytically. At low temperatures we predict a phase in which the MFPT is dominated by a few paths.

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