Bipolar transport observed through extraction currents on organic photovoltaic blend materials
2006 (English)In: Applied Physics Letters, ISSN 0003-6951, Vol. 89, 142111- p.Article in journal (Refereed) Published
Both electron and hole mobilities have been simultaneously measured through charge extraction by linearly increasing voltage on polymer heterojunction solar cells with varying stoichiometry of polymer and acceptor. The polymer is a low band gap copolymer of fluorene, thiophene, and electron accepting groups named APFO-Green 5, and the acceptor is [6,6]-phenyl-C61-butyric acid methylester. Results are correlated to field effect transistor measurements on the same material system. A monotonous increase in mobility for both carrier types is observed with increased acceptor loading.
Place, publisher, year, edition, pages
2006. Vol. 89, 142111- p.
polymer blends, organic semiconductors, fullerene compounds, solar cells, electron mobility, hole mobility, stoichiometry, carrier density
National CategoryNatural Sciences
IdentifiersURN: urn:nbn:se:liu:diva-12823DOI: 10.1063/1.2360199OAI: oai:DiVA.org:liu-12823DiVA: diva2:17126