Spray-processable blue-to-highly transmissive switching polymer electrochromes via the donor-acceptor approach

Abstract

Spray processable blue electrochromic polymers with strictly alternating donor-acceptor copolymers are reported that exhibit saturated blue neutral states, highly transmissive oxidized states, excellent optical contrasts, fast switching times, and long-term redox switching stability. In addition, an alkylester-functionalized analogue is demonstrated, where the solubility of the material thin-film is irreversibly changed while allowing it to retain its electroactivity. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.