liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Geminate charge recombination in alternating polyfluorene copolymer/fullerene blends
Show others and affiliations
2007 (English)In: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 129, no 27, 8466-8472 p.Article in journal (Refereed) Published
Abstract [en]

By measuring excited state and charge dynamics in blends of an alternating polyfluorene copolymer and fullerene derivative over nine orders in time and two orders in light intensity, we have monitored the light-induced processes from ultrafast charge photogeneration to much slower decay of charges by recombination. We find that at low light intensities relevant to solar cell operation relatively fast (∼30 ns) geminate recombination is the dominating charge decay process, while nongeminate recombination has a negligible contribution. The conclusion of our work is that under solar illumination conditions geminate recombination of charges may be directly competing with efficient charge collection in polymer/fullerene solar cells. © 2007 American Chemical Society.

Place, publisher, year, edition, pages
2007. Vol. 129, no 27, 8466-8472 p.
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-39401DOI: 10.1021/ja068909qLocal ID: 48236OAI: diva2:260250
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2015-10-06

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Zhang, FenglingInganäs, Olle
By organisation
The Institute of TechnologyBiomolecular and Organic Electronics
In the same journal
Journal of the American Chemical Society
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 26 hits
ReferencesLink to record
Permanent link

Direct link