Dithienopyrrole-based donor-acceptor copolymers: Low band-gap materials for charge transport, photovoltaics and electrochromism

Xuan Zhang, Timothy T. Steckler, Raghunath R. Dasari, Shino Ohira, William J. Potscavage, Shree Prakash Tiwari, Séverine Coppée, Stefan Ellinger, Stephen Barlow, Jean Luc Brédas, Bernard Kippelen^*, John R. Reynolds, Seth R. Marder