Ultrafast energy and electron transfer in conjugated oligomer-fullerene molecules

P.A. Hal, van, R.A.J. Janssen, G. Lanzani, G. Cerullo, M. Zavelani-Rossi, S. Silvestri, de

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

The intramol. photoinduced energy and electron transfer within a fullerene-oligothiophene-fullerene triad with nine thiophene units (C60-9T-C60) and an oligo(p-phenylene vinylene)-fullerene dyad with four Ph groups (OPV4-C60) was studied with femtosecond pump-probe spectroscopy with sub-10 fs and 200 fs time resoln. in solvents of different polarity. Photoexcitation of the p-conjugated oligomer moiety in the triad and dyad results in an ultrafast singlet-energy transfer reaction to create the fullerene singlet-excited state with a time const. of 150-190 fs, irresp. of the polarity of the medium. In a polar solvent, intramol. electron transfer occurs from the oligomer moiety to the C60 moiety with a time const. of 10-13 ps as a secondary reaction, subsequent to the ultrafast singlet-energy transfer. The charge-sepd. state has a lifetime of 50-80 ps and recombines to the ground state. [on SciFinder (R)]
Originele taal-2Engels
TitelElectronic, optical and optoelectronic polymers and oligomers : symposium held April 17 - 20, 2001, San Francisco, California, U.S.A. / [Symposium on Electronic, Optical and Optoelectronic Polymers and Oligomers was held at the 2001 MRS spring meeting]
RedacteurenG.E. Jabbour
Plaats van productieWarrendale, Pa.
UitgeverijMaterials Research Society
Pagina's247-258
ISBN van geprinte versie1-558-99601-X
StatusGepubliceerd - 2002
Evenementconference; Symposium on Electronic, Optical and Optoelectronic Polymers and Oligomers ; (San Francisco, Calif.) : 2001.04.17-20; 2001-04-17; 2001-04-20 -
Duur: 17 apr 200120 apr 2001

Publicatie series

NaamMaterials Research Society Symposium Proceedings
Volume665
ISSN van geprinte versie0272-9172

Congres

Congresconference; Symposium on Electronic, Optical and Optoelectronic Polymers and Oligomers ; (San Francisco, Calif.) : 2001.04.17-20; 2001-04-17; 2001-04-20
Periode17/04/0120/04/01
AnderSymposium on Electronic, Optical and Optoelectronic Polymers and Oligomers ; (San Francisco, Calif.) : 2001.04.17-20

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  • Citeer dit

    Hal, van, P. A., Janssen, R. A. J., Lanzani, G., Cerullo, G., Zavelani-Rossi, M., & Silvestri, de, S. (2002). Ultrafast energy and electron transfer in conjugated oligomer-fullerene molecules. In G. E. Jabbour (editor), Electronic, optical and optoelectronic polymers and oligomers : symposium held April 17 - 20, 2001, San Francisco, California, U.S.A. / [Symposium on Electronic, Optical and Optoelectronic Polymers and Oligomers was held at the 2001 MRS spring meeting] (blz. 247-258). (Materials Research Society Symposium Proceedings; Vol. 665). Warrendale, Pa.: Materials Research Society.