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Abstract
The fundamental physical and elcctrochromic properties of electrochemically produced poly(2′,2″-bithiophene)-5′,5″-diyl-1,4-phenylene (PDTB) have been studied. It has been found that a wide range of film morphology can be generated through variation of deposition conditions and cell electrolyte. Seven segment electrochromic displays utilising the material exhibit good colour contrast, and perfom well even after 103 cycles.