Faraday rotation measurements on thin films of regioregular alkyl-substituted polythiophene derivatives

Palash Gangopadhyay, Ramakrishna Voorakaranam, Alejandra Lopez-Santiago, Stijn Foerier, Jayan Thomas, Robert A. Norwood, Andre Persoons, Nasser Peyghambarian

Research output: Contribution to journalArticle

40 Scopus citations


The authors describe a magneto-optic measurement system for the determination of Faraday rotation from ultrathin films relative to a substrate reference. The setup is intrinsically immune to reciprocal effects such as circular birefringence and thermal fluctuations. Faraday rotation measurements on thin films of 3-hexyl and 3-dodecyl derivatives of regioregular polythiophene are reported. The authors show that the Faraday rotation from these films is largely dependent on the supramolecular organization within the the films of these polymers.

Original languageEnglish (US)
Pages (from-to)8032-8037
Number of pages6
JournalJournal of Physical Chemistry C
Issue number21
StatePublished - May 29 2008


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Cite this