title: A D-A copolymer of dithienosilole and a new acceptor unit of naphtho[2,3-c]thiophene-4,9-dione for efficient polymer solar cells.
abstract: A strong electron-withdrawing unit, naphtho[2,3-c]thiophene-4,9-dione, was copolymerized with dithienosilole to get a D-A copolymer, PDTSNTDO, with a narrow bandgap and lower-lying HOMO level. The PCE of the PDTSNTDO-based device reached 5.21%, with a high open circuit voltage of 0.88 V.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Institution of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Chaohua
authors.initials: C
authors.lastname: Cui
authors.forename: Xi
authors.initials: X
authors.lastname: Fan
authors.forename: Maojie
authors.initials: M
authors.lastname: Zhang
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.forename: Jie
authors.initials: J
authors.lastname: Min
authors.forename: Yongfang
authors.initials: Y
authors.lastname: Li