Oligomer-fullerene dyads : photophysics and performance as active layer material in photovoltaic cells

E. Peeters, P.A. Hal, van, R.A.J. Janssen, C.J. Brabec, N.S. Sariciftci, J. Knol, J.C. Hummelen

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

The photophysics of a homologous series of oligo(p-phenylene vinylene)-fulleropyrrolidine (OPVn-C60, n = 1 to 4, with n the no. of Ph rings) donor-acceptor dyads and the corresponding single moiety model compds. were studied. Fast intramol. singlet-energy transfer occurs after photoexcitation of the OPVn moiety in an apolar solvent. Photoexcitation in a polar solvent results in electron transfer for OPV3-C60, OPV4-C60, and to some extent for OPV2-C60, but not for OPV1-C60. These results are compared to the results obtained for mixts. of the single moiety model compds. in the same solvents. In these dyads electron transfer is likely to occur via a two-step process, i.e. a very fast singlet-energy transfer prior to charge sepn. In thin films of OPV3-C60 and OPV4-C60, a long-lived charge-sepd. state is formed after photoexcitation. This long lifetime is attributed to the migration of charges to different mols. A flexible photovoltaic device, prepd. from OPV4-C60, is presented.
Originele taal-2Engels
TitelFullerenes 2000, volume 9: functionalized fullerenes : proceedings of the international symposium, Meeting of the Electrochemical Society ; 197 (Toronto) : 2000.05.14-18
RedacteurenA Martin, A Maggini, A Guldi
Plaats van productiePennington
UitgeverijElectrochemical Society
Pagina's69-75
ISBN van geprinte versie1-566-77276-1
StatusGepubliceerd - 2000
Evenement197th Electrochemical Society Meeting (ECS 2000) - Toronto, Canada
Duur: 14 mei 200018 mei 2000

Publicatie series

NaamProceedings - Electrochemical Society
Volume2000
ISSN van geprinte versie0161-6374

Congres

Congres197th Electrochemical Society Meeting (ECS 2000)
LandCanada
StadToronto
Periode14/05/0018/05/00
AnderMeeting of the Electrochemical Society ; 197 (Toronto) : 2000.05.14-18

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  • Citeer dit

    Peeters, E., Hal, van, P. A., Janssen, R. A. J., Brabec, C. J., Sariciftci, N. S., Knol, J., & Hummelen, J. C. (2000). Oligomer-fullerene dyads : photophysics and performance as active layer material in photovoltaic cells. In A. Martin, A. Maggini, & A. Guldi (editors), Fullerenes 2000, volume 9: functionalized fullerenes : proceedings of the international symposium, Meeting of the Electrochemical Society ; 197 (Toronto) : 2000.05.14-18 (blz. 69-75). (Proceedings - Electrochemical Society; Vol. 2000). Pennington: Electrochemical Society.