Electrochromic properties of a poly(dithienylfuran) derivative featuring a redox-active dithiin unit

Kaur, Sandeep and Findlay, Neil J. and Kanibolotsky, Alexander L. and Elmasly, Saadeldin E. T. and Skabara, Peter and Berridge, Rory and Wilson, Claire and Coles, Simon J. (2012) Electrochromic properties of a poly(dithienylfuran) derivative featuring a redox-active dithiin unit. Polymer Chemistry, 3 (8). pp. 2277-2286. ISSN 1759-9954

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Abstract

A teraryl monomer containing a 1,4-dithiin-furan central unit has been synthesised and characterised by single crystal X-ray crystallography. The di(thienyl)furan monomer 11 was successfully polymerised electrochemically and shown to possess a lower electrochemical band gap than its terthiophene analogue (1.97 eV cf. 2.11 eV). The electrochromic properties of this polymer proved to be superior to PEDOT, with fast switching and reversible colour transformation at high colour contrast (CE = 212 cm(2) C-1 cf. 183 cm(2) C-1 for PEDOT at 95% optical switch).

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