Contact
    Start Publications Optical, electrical, and thermochromic properties of ...
    ←  Publication Finder
    Attension

    Optical, electrical, and thermochromic properties of polyazothiophene Langmuir–Blodgett films

    Year: 2008

    Journal: Colloid & Polymer Science, Volume 286, Number 12 / October, 2008, 1395-1401, 20111221

    Authors: Vanessa C. Gonçalves, Marystela Ferreira, Clarissa A. Olivati, Marcos R. Cardoso, Cleber R. Mendonça and Debora T. Balogh

    Organizations: Instituto de Física de São Carlos, USP, CP 369, 13560-970 São Carlos, SP, Brazil, Campus de Sorocaba-Rodovia João Leme dos Santos SP 264, Universidade Federal de São Carlos, Km 110 CP 3031, 18043-970 Sorocaba, São Paulo, Brasil, Depto de Física/IGCE, UNESP, CP 178, 13500-230 Rio Claro, SP, Brazil

    The conductivity and luminescence of conjugated polymers may be combined with the photoisomerization capability of azobenzene materials to achieve unique properties for a variety of applications, particularly if conjugated polymers with azobenzene side chains are processed as nanostructured films. In this study, we report on Langmuir–Blodgett (LB) films of a polythiophene-bearing azobenzene moieties, which displayed photoluminescence, thermochromism, electroactivity, and photoinduced birefringence. The latter three properties were enhanced in the LB films, as compared to spin-coated films of the polyazothiophene, and this has been attributed to differences in film morphology that could be probed with atomic force microscopy.