Resonance Raman scattering from spincoated and Langmuir-Blodgett poly(3-alkylthiophene) films

Johann Kastner, Hans Kuzmany, Jari Paloheimo, Peter Dyreklev

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Spincoated poly(3-hexylthiophene) and Langmuir-Blodgett films of poly(3-hexylthiophene)/ arachidic acid with a different number of layers have been studied by resonance Raman scattering. In both kinds of samples a clear dispersion was observed for the Raman line of the amplitude mode. This dispersion effect is much higher for spincoated films as compared to LB films. We interpret this behaviour by the conjugation length model using the A-term of the Albrecht theory. An average conjugation lenght of about four thiophene rings was found for spincoated samples and a higher value for the LB films.
Original languageEnglish
Pages (from-to)558 - 563
Number of pages6
JournalSynthetic Metals
Volume55
Issue number1
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

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