title: Polymer solar cells based on copolymers of dithieno[3,2-b:2',3'-d]silole and thienopyrroledione.
abstract: Novel low band gap copolymers based on dithienosilole and thienopyrroledione units were synthesized. Copolymer P1 with branched side chains on the TPD units demonstrated a PCE of 4.4% with a high V(oc) of 0.89 V for OPV applications while OTFT devices fabricated from a copolymer containing linear side chains (P2) performed better in OTFT device configurations.
authors: Institute of Materials Research and Engineering (IMRE), Agency of Science, Technology, and Research (A*STAR), 3 Research Link, Singapore 117602, Singapore. hongyr@imre.a-star.edu.sg
authors: Young-Rae
authors: YR
authors: Hong
authors: Hoi-Ka
authors: HK
authors: Wong
authors: Lionel C H
authors: LC
authors: Moh
authors: Huei-Shuan
authors: HS
authors: Tan
authors: Zhi-Kuan
authors: ZK
authors: Chen