title: Exciton intrachain transport induced by interchain packing configurations in conjugated polymers.
abstract: Based on a tight binding model combined with a nonadiabatic dynamics approach, we theoretically investigate the exciton intrachain transport in conjugated polymers with different interchain packing configurations. We construct two different interchain packing configurations, i.e. linear and exponential forms, and simulate the dynamical processes of the exciton transport in these systems. We find that, in both cases, there exists a distribution of driving force for exciton transport, which stems from the gradient of the exciton creation energy along the chains. This finding enriches the picture of exciton transport in polymers and provides a new idea to improve the exciton transport length in polymeric photovoltaic devices.
authors.affiliation: School of Physics, State Key Laboratory of Crystal Materials, Shandong University, 27 Shanda Nanlu, Jinan, 250100, P. R. China. gk@sdu.edu.cn xsj@sdu.edu.cn.
authors.forename: Ruixuan
authors.initials: R
authors.lastname: Meng
authors.forename: Kun
authors.initials: K
authors.lastname: Gao
authors.forename: Gaiyan
authors.initials: G
authors.lastname: Zhang
authors.forename: Shixuan
authors.initials: S
authors.lastname: Han
authors.forename: Fujiang
authors.initials: F
authors.lastname: Yang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Li
authors.forename: Shijie
authors.initials: S
authors.lastname: Xie