Excitons in two coupled conjugated polymer chains
Soft Condensed Matter
2009-10-30 v1 Materials Science
Strongly Correlated Electrons
Abstract
We have studied the exciton states in two coupled conjugated polymer chains which are modeled individually by the Su-Schrieffer-Heeger Hamiltonian and coupled by an interchain electron-transfer term. Both the intra- and inter-chain long range Coulomb interactions are taken into account. The properties of the lowest symmetric and antisymmetric exciton states are extensively discussed for both the parallel and anti-parallel ordering between these two chains. It is found that, for these two kinds of ordering, the features of excitons are quite different. Possible implications for the experiment of luminescent polymers are also addressed.
Cite
@article{arxiv.cond-mat/9709253,
title = {Excitons in two coupled conjugated polymer chains},
author = {Z. G. Yu and M. W. Wu and X. S. Rao and X. Sun and A. R. Bishop},
journal= {arXiv preprint arXiv:cond-mat/9709253},
year = {2009}
}
Comments
19 pages, pdf file of the paper available