Effect of substituent groups on quinoxaline-based random copolymers on the optoelectronic and photovoltaic properties
By Sevki Can Cevher and Gonul Hizalan and Cansel Temiz and Yasemin Arslan Udum and Levent Toppare and Ali Cirpan
Published in Polymer
2016
Abstract
In this study, three low band gap donor-acceptor (D-A) type quinoxaline-based random copolymers were synthesized. The effect of varying substituent groups on quinoxaline groups on optoelectronic properties and the performance of bulk-heterojunction polymer solar cells was investigated. Electrochemical and optical studies indicate that these copolymers are promising materials for both electrochromic and polymer solar cells applications. Two random polymers were found as excellent candidates for \NIR\ electrochromic devices owing to their 60% and 94% optical contrast values respectively in \NIR\ region with less than 1