Vibrational Enhancement of the Effective Donor - Acceptor Coupling
Mesoscale and Nanoscale Physics
2009-11-11 v1 Disordered Systems and Neural Networks
Abstract
The paper deals with a simple three sites model for charge transfer phenomena in an one-dimensional donor (D) - bridge (B) - acceptor (A) system coupled with vibrational dynamics of the B site. It is found that in a certain range of parameters the vibrational coupling leads to an enhancement of the effective donor - acceptor electronic coupling as a result of the formation of the polaron on the B site. This enhancement of the charge transfer efficiency is maximum at the resonance, where the effective energy of the fluctuating B site coincides with the donor (acceptor) energy.
Cite
@article{arxiv.cond-mat/0505761,
title = {Vibrational Enhancement of the Effective Donor - Acceptor Coupling},
author = {M. Lazrek and D. J. Bicout and S. Jaziri and E. Kats},
journal= {arXiv preprint arXiv:cond-mat/0505761},
year = {2009}
}
Comments
5 pages, 3 figures