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

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
On the origin of the open-circuit voltage of polymer-fullerene solar cells
Hasselt University.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, The Institute of Technology.
Hasselt University.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, The Institute of Technology.
Show others and affiliations
2009 (English)In: NATURE MATERIALS, ISSN 1476-1122, Vol. 8, no 11, 904-909 p.Article in journal (Refereed) Published
Abstract [en]

The increasing amount of research on solution-processable, organic donor-acceptor bulk heterojunction photovoltaic systems, based on blends of conjugated polymers and fullerenes has resulted in devices with an overall power-conversion efficiency of 6%. For the best devices, absorbed photon-to-electron quantum efficiencies approaching 100% have been shown. Besides the produced current, the overall efficiency depends critically on the generated photovoltage. Therefore, understanding and optimization of the open-circuit voltage (V-oc) of organic solar cells is of high importance. Here, we demonstrate that charge-transfer absorption and emission are shown to be related to each other and V-oc in accordance with the assumptions of the detailed balance and quasi-equilibrium theory. We underline the importance of the weak ground-state interaction between the polymer and the fullerene and we confirm that V-oc is determined by the formation of these states. Our work further suggests alternative pathways to improve V-oc of donor-acceptor devices.

Place, publisher, year, edition, pages
2009. Vol. 8, no 11, 904-909 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-51472DOI: 10.1038/nmat2548OAI: oai:DiVA.org:liu-51472DiVA: diva2:275244
Available from: 2009-11-04 Created: 2009-11-04 Last updated: 2014-09-08

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Tvingstedt, KristoferInganäs, Olle

Search in DiVA

By author/editor
Tvingstedt, KristoferInganäs, Olle
By organisation
Biomolecular and Organic ElectronicsThe Institute of Technology
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 932 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf