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Electrochemical bandgaps of substituted polythiophenes
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology.
Depts. Organ. Chem./Polymer Technol., Chalmers University of Technology, 412 83 Göteborg, Sweden, Addis Ababa University, Department of Chemistry, P.O. Box 1176, Addis Ababa, Ethiopia.
Depts. Organ. Chem./Polymer Technol., Chalmers University of Technology, 412 83 Göteborg, Sweden.
Depts. Organ. Chem./Polymer Technol., Chalmers University of Technology, 412 83 Göteborg, Sweden.
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2003 (English)In: Journal of Materials Chemistry, ISSN 0959-9428, E-ISSN 1364-5501, Vol. 13, no 6, 1316-1323 p.Article in journal (Refereed) Published
Abstract [en]

The electrochemical bandgaps for different soluble substituted polythiophenes have been measured by cyclic voltammetry. The effect of substituents on the oxidation/reduction potentials is discussed. Bandgaps obtained by cyclic voltammetry have been found to be in general higher than optical bandgaps. Among regioregular polymers substituted with a phenyl group at position 3 of the thiophene ring, examples are found that give very symmetric voltammograms. Rationalization for this behaviour is discussed from a conformational point of view.

Place, publisher, year, edition, pages
2003. Vol. 13, no 6, 1316-1323 p.
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Engineering and Technology
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URN: urn:nbn:se:liu:diva-46615DOI: 10.1039/b301403gOAI: oai:DiVA.org:liu-46615DiVA: diva2:267511
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Johansson, TomasInganäs, Olle

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