Optical, electrical, and thermochromic properties of polyazothiophene Langmuir-Blodgett films
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Springer
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Abstract
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.
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Keywords
Langmuir-Blodgett, polythiophenes, azobenzene
Language
English
Citation
Colloid and Polymer Science. New York: Springer, v. 286, n. 12, p. 1395-1401, 2008.
