title: Donor-acceptor-type polymers based on dithieno[2,3-b;7,6-b]carbazole unit for photovoltaic applications.
abstract: Dithieno[2,3-b;7,6-b]carbazole (TCZT), a type of heteropentacene with nitrogen and sulfur atoms, was synthesized with a focus on the unique reactivity of carbazole via double intramolecular Friedel-Crafts acylation. A donor-acceptor-type polymer (PTCZTBT) was also synthesized, and its physicochemical properties are reported.
authors.affiliation: Center for Intellectual Property Strategies, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan. a_kimoto@riken.jp
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kimoto
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Tajima