Journal
CHEMICAL PHYSICS
Volume 357, Issue 1-3, Pages 120-123Publisher
ELSEVIER
DOI: 10.1016/j.chemphys.2008.11.011
Keywords
Bulk heterojunction; Polymer photovoltaics
Funding
- Swedish Foundation for Strategic Research Foundation through the Center of Organic Electronics
Ask authors/readers for more resources
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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available