Exciton and Hole-Transfer Dynamics in Polymer: Fullerene Blends

A. Serbenta, V.G. Pavelyev, J.C. Hummelen, P.H.M. van Loosdrecht, M.S. Pshenichnikov

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Ultrafast hole transfer dynamics from fullerene derivative to polymer in bulk heterojunction blends are studied with visible-pump – IR-probe spectroscopy. The hole transfer process is found to occur in 50/300 fs next to the interface, while a longer 15-ps time is attributed to exciton diffusion towards interface in PC71BM domains. High polaron generation efficiency in P3HT blends indicates excellent intercalation between the polymer and the fullerene even at highest PC71BM concentration thereby yielding a valuable information on the blend morphology.
Original languageEnglish
Title of host publicationProceedings of the XVIIIth International Conference on Ultrafast Phenomena
EditorsMajed Chergui, Steve Cundiff, Antoinette Taylor, Regina de Vivie-Riedle, Kaoru Yamanouchi
PublisherUniversity of Groningen, Stratingh Institute for Chemistry
ISBN (Print)9782759809561
Publication statusPublished - 2013
EventXVIIIth International Conference on Ultrafast Phenomena, Lausanne, Switzerland -
Duration: 8-Jul-201213-Jul-2012


ConferenceXVIIIth International Conference on Ultrafast Phenomena, Lausanne, Switzerland

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