期刊
CHEMICAL PHYSICS
卷 357, 期 1-3, 页码 120-123出版社
ELSEVIER
DOI: 10.1016/j.chemphys.2008.11.011
关键词
Bulk heterojunction; Polymer photovoltaics
资金
- Swedish Foundation for Strategic Research Foundation through the Center of Organic Electronics
We combine results from transient optical absorption in a bulk heterojunction polymer donor/fullerene acceptor material, obtained in the optical range as well as in the THz range, with results from electrical transients after a short light pulse, to present a unified interpretation of the transport of charge after the very first act of photoinduced charge transfer. We find that the mobility of charges is initially very high, but dramatically reduced with time, to arrive at values three orders of magnitude lower. We show that this can be understood as a consequence of the transport of hot charges by hopping through the density of states, from higher to lower energies. (C) 2008 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