Y. Udum, Simge Tarkuç, L. Toppare
Mar 1, 2009
Citations
0
Influential Citations
22
Citations
Journal
Synthetic Metals
Abstract
Abstract Up to date there are few studies reporting the use of selenophene derivatives as electrochromic polymers. This report highlights the synthesis of a selenophene containing multi-ring aromatic polymer which possesses reasonable optical contrasts at both visible and near-IR regions. Electrochemical synthesis of a conducting polymer from a multi-ring aromatic monomer, 2-(2,5-bis(hexyloxy)-4-(selenophen-2-yl)phenyl)selenophene (BSB(OC6H13)2), was achieved at a lower potential than its corresponding parent, selenophene. The strong absorption band for the undoped polymer was 474 nm and the onset energy for the π–π* transition (Eg) was 1.9 eV (645 nm). A novel dual-polymer electrochromic device was constructed in sandwich configuration where poly(BSB(OC6H13)2) was used as the anodically coloring material. It is the first electrochromic device where a selenophene-containing polymer was used as an active layer. The device switches between a rose-colored state and a blue-colored state with a fast response time (less than 1 s).