Resonant Raman Scattering of Poly-3-Alkylthiophenes

Abstract

We report Raman scattering measurements on poly-3-heptylthiophene and poly-3-undecylthiophenes both on resonance and preresonance conditions. We have studied different samples as solutions ,solution cast films and electrosynthetized as grown films. Our results indicate that the vibrational frequency of the mode which is strongly coupled to the π - π* electronic transition is sensible to “small” torsions between thiophenes rings , which do not necessarly interrupt completely the conjugation path.

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Correspondence to C. Botta.

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Botta, C., Luzzati, S., Bolognesi, A. et al. Resonant Raman Scattering of Poly-3-Alkylthiophenes. MRS Online Proceedings Library 173, 397–402 (1989). https://doi.org/10.1557/PROC-173-397

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