Synthesis of poly[(4,4′-(dihexyl)dithieno(3,2-b;2′,3′-d)silole)] and copolymerization with 3-hexylthiophene: new semiconducting materials with extended optical absorption

Florian Boon; Noémie Hergué; Gaëlle Deshayes; David Moerman; Simon Desbief; Julien De Winter; Pascal Gerbaux; Yves H. Geerts; Roberto Lazzaroni; Philippe Dubois

doi:10.1039/C3PY00562C

Synthesis of poly[(4,4′-(dihexyl)dithieno(3,2-b;2′,3′-d)silole)] and copolymerization with 3-hexylthiophene: new semiconducting materials with extended optical absorption†

Florian Boon,^ab Noémie Hergué,*^ad Gaëlle Deshayes,^a David Moerman,^b Simon Desbief,^b Julien De Winter,^c Pascal Gerbaux,^c Yves H. Geerts,^d Roberto Lazzaroni^b and Philippe Dubois^a

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^a Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons – UMONS, 20 Place du Parc, B-7000 Mons, Belgium
E-mail: noemie.hergue@umons.ac.be

^b Laboratory of Chemistry of Novel Materials, Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons – UMONS, 20 Place du Parc, B-7000 Mons, Belgium

^c Mass Spectroscopy Research Group – Centre Interdisciplinaire de Spectrométrie de masse (CISMa), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons – UMONS, 20 Place du Parc, B-7000 Mons, Belgium

^d Laboratory of Polymer Chemistry, Université Libre de Bruxelles (ULB), Campus de la Plaine, B-1050 Bruxelles, Belgium

Abstract

The synthesis of poly[(4,4′-(dihexyl)dithieno(3,2-b;2′,3′-d)silole)] has been carried out through Kumada catalyst transfer polycondensation and its copolymerization with 3-hexylthiophene (3HT) leads to well-defined diblock copolymers in terms of molecular characteristics. These copolymers show a wider absorption window than P3HT, which is of potential interest for photovoltaic applications.

Polymer Chemistry

Synthesis of poly[(4,4′-(dihexyl)dithieno(3,2-b;2′,3′-d)silole)] and copolymerization with 3-hexylthiophene: new semiconducting materials with extended optical absorption†

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Synthesis of poly[(4,4′-(dihexyl)dithieno(3,2-b;2′,3′-d)silole)] and copolymerization with 3-hexylthiophene: new semiconducting materials with extended optical absorption

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