Synthesis of soluble oligothiophenes bearing cyano groups, their optical and electrochemical properties |
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| Authors: | Jean-Yves Balandier Claire Amato Jérôme Cornil Yves Geerts |
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| Institution: | a Université Libre de Bruxelles (ULB), Faculté des sciences, Laboratoire Chimie des Polymères, CP 206/1, Boulevard du triomphe, 1050 Brussels, Belgiumb Laboratory for Chemistry of Novel Materials, University of Mons (UMons), Place du Parc 20, 7000 Mons, Belgiumc University of Antwerp, Department of Chemistry, Groenenborgerlaan 171, 2020 Antwerp, Belgium |
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| Abstract: | The synthesis and the characterization of twelve new soluble oligothiophenes, possessing two to four 3,4-dicyanothiophene units in their backbone, are described. These semiconductors are prepared through Stille coupling and/or homo-coupling reactions. Cyclic voltammetry studies have been performed to evaluate their stability as n-type semiconducting materials under ambient conditions. The measured electrochemical and optical properties are fully supported by quantum-chemical calculations. |
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| Keywords: | Oligothiophene synthesis n-Type semiconductors Organic electronics Cyclic voltammetry |
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