期刊
ORGANIC ELECTRONICS
卷 15, 期 10, 页码 2461-2467出版社
ELSEVIER
DOI: 10.1016/j.orgel.2014.07.025
关键词
Electron-hole pair dissociation; Bulk heterojunction solar cell; Dark dipoles; Hopping transport
资金
- Deutsche Forschungsgemeinschaft [GRK 1782, BA 1298/9-1]
Understanding the mechanism of the efficient exciton dissociation in multicomponent systems belongs to the most prominent challenges in applied soft-matter physics. The model with discrete dipoles along the internal interface between the different material components is often considered as promising to account for the exciton dissociation. However, the dissociation efficiency in the framework of this model has been so far calculated only within the harmonic approximation. In the current article we calculate the dissociation efficiency in the dipolar model beyond the harmonic approximation and show that the exciton dissociation probability appears drastically larger than assumed so far. We also consider the effect of a finite spatial extent of the dipole charges and show that if the charges cannot be treated as point-like species, harmonic approximation is not applicable. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据