title: Efficient polymer solar cells based on benzothiadiazole and alkylphenyl substituted benzodithiophene with a power conversion efficiency over 8%.
abstract: A new copolymer PBDTP-DTBT based on benzothiadiazole and alkylphenyl substituted benzodithiophene is synthesized and characterized. The correlation of the evolution of the morphology and photovoltaic performance is investigated. The power conversion efficiency of the polymer solar cells based on PBDTP-DTBT/PC71 BM (1:1.5, w/w) reaches up to 8.07%, under the irradiation of AM 1.5G, 100 mW/cm(2) .
authors.affiliation: State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Maojie
authors.initials: M
authors.lastname: Zhang
authors.forename: Yu
authors.initials: Y
authors.lastname: Gu
authors.forename: Xia
authors.initials: X
authors.lastname: Guo
authors.forename: Feng
authors.initials: F
authors.lastname: Liu
authors.forename: Shaoqing
authors.initials: S
authors.lastname: Zhang
authors.forename: Lijun
authors.initials: L
authors.lastname: Huo
authors.forename: Thomas P
authors.initials: TP
authors.lastname: Russell
authors.forename: Jianhui
authors.initials: J
authors.lastname: Hou
keywords: benzodithiophene; benzothiadiazole; morphology; polymer solar cells; power conversion efficiency