Format

Send to

Choose Destination
J Am Chem Soc. 2010 Sep 1;132(34):11878-80. doi: 10.1021/ja1045742.

Charge transfer state versus hot exciton dissociation in polymer-fullerene blended solar cells.

Author information

1
Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

Abstract

We examine the significance of hot exciton dissociation in two archetypical polymer-fullerene blend solar cells. Rather than evolving through a bound charge transfer state, hot processes are proposed to convert excitons directly into free charges. But we find that the internal quantum yields of carrier photogeneration are similar for both excitons and direct excitation of charge transfer states. The internal quantum yield, together with the temperature dependence of the current-voltage characteristics, is consistent with negligible impact from hot exciton dissociation.

PMID:
20690623
DOI:
10.1021/ja1045742
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for American Chemical Society
Loading ...
Support Center