Relaxation processes in thiophene-based random copolymers

G. Bongiovanni, M.A. Loi, A. Mura, A. Piaggi, S. Luzzati, M. Catellani

OnderzoeksoutputAcademic

11 Citaten (Scopus)
260 Downloads (Pure)

Samenvatting

The relaxation dynamics of soluble polyalkylthiophenes obtained by the random copolymerisation of 3,4-dibutylthiophene and 3-butylthiophene monomers is investigated. In these systems, the effective conjugation length, the optical gap and the non-radiative decay rate are controlled by varying the content of disubstituted monomers, the steric hindrance of which induces a twisting angle between thiophene rings. Several indications are reported in favour of spectral diffusion of the photoexcitations. Migration processes mainly occur within a few tens of picoseconds.
Originele taal-2English
Pagina's (van-tot)749 - 754
Aantal pagina's6
TijdschriftChemical Physics Letters
Volume288
Nummer van het tijdschrift5
DOI's
StatusPublished - 1998

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