Electrochemical and optical properties of synthesized donor-acceptor-donor type conducting polymers

Conducting polymers are attracted great interest due tu their different application areas such as smart windows and displays as electrochromic devices, organic light emitting diodes and solar cells. Donor (electron donor) - acceptor (electron-receiver) molecules for the synthesis of such polymers are the key materials. In this study, 10,12-Bis(4-hexylthiophen-2-yl)dibenzo[f,h]thieno[3,4-b]quinoxaline (HTBQ) and 10,13-Bis(4-hexylthiophen-2-yl)dipyrido[3,2-a:2?,3?-c]phenazine (HTPP) where donor (electron donor) and acceptor (electron receptor) groups are present within the same molecule were synthesized. The effect of acceptor units in the redox, electronic and optic properties of resulting polymers was examined electrochemically.Key Words : Electrochemical polymerization, electrochromism, conducting polymer, low band gap polymer.