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

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

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)]
Original languageEnglish
Title of host publicationElectronic, 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]
EditorsG.E. Jabbour
Place of PublicationWarrendale, Pa.
PublisherMaterials Research Society
Pages247-258
ISBN (Print)1-558-99601-X
Publication statusPublished - 2002
Eventconference; Symposium on Electronic, Optical and Optoelectronic Polymers and Oligomers ; (San Francisco, Calif.) : 2001.04.17-20; 2001-04-17; 2001-04-20 -
Duration: 17 Apr 200120 Apr 2001

Publication series

NameMaterials Research Society Symposium Proceedings
Volume665
ISSN (Print)0272-9172

Conference

Conferenceconference; Symposium on Electronic, Optical and Optoelectronic Polymers and Oligomers ; (San Francisco, Calif.) : 2001.04.17-20; 2001-04-17; 2001-04-20
Period17/04/0120/04/01
OtherSymposium on Electronic, Optical and Optoelectronic Polymers and Oligomers ; (San Francisco, Calif.) : 2001.04.17-20

Fingerprint Dive into the research topics of 'Ultrafast energy and electron transfer in conjugated oligomer-fullerene molecules'. Together they form a unique fingerprint.

Cite this