title: Anthracene-containing wide-band-gap conjugated polymers for high-open-circuit-voltage polymer solar cells.
abstract: The synthesis, characterization, and photophysical and photovoltaic properties of two anthracene-containing wide-band-gap donor and acceptor (D-A) alternating conjugated polymers (P1 and P2) are described. These two polymers absorb in the range of 300-600 nm with a band gap of about 2.12 eV. Polymer solar cells with P1:PC71 BM as the active layer demonstrate a power conversion efficiency (PCE) of 2.23% with a high Voc of 0.96 V, a Jsc of 4.4 mA cm(-2) , and a comparable fill factor (FF) of 0.53 under simulated solar illumination of AM 1.5 G (100 mW cm(-2) ). In addition, P2:PC71 BM blend-based solar cells exhibit a PCE of 1.42% with a comparable Voc of 0.89 V, a Jsc of 3.0 mA cm(-2) , and an FF of 0.53.
authors.affiliation: Beijing Key Laboratory of Energy Conversion and Storage Materials, Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Xin Jie Kou Wai Street No. 19, Beijing 100875, PR China.
authors.forename: Xue
authors.initials: X
authors.lastname: Gong
authors.forename: Cuihong
authors.initials: C
authors.lastname: Li
authors.forename: Zhen
authors.initials: Z
authors.lastname: Lu
authors.forename: Guangwu
authors.initials: G
authors.lastname: Li
authors.forename: Qiang
authors.initials: Q
authors.lastname: Mei
authors.forename: Tao
authors.initials: T
authors.lastname: Fang
authors.forename: Zhishan
authors.initials: Z
authors.lastname: Bo
mesh_terms: D000873:Anthracenes / Q000737:chemistry*; D055664:Electrochemical Techniques; D015394:Molecular Structure; D011108:Polymers / Q000138:chemical synthesis*; D011810:Quinoxalines / Q000737:chemistry*; D012993:Solar Energy; D012995:Solubility; D013472:Sunlight; D013830:Thiadiazoles / Q000737:chemistry*
chemical_list: D000873:Anthracenes; D011108:Polymers; D011810:Quinoxalines; D013830:Thiadiazoles; C015700:benzo-1,2,3-thiadiazole
keywords: anthracene; high open-circuit voltage; polymer solar cells; wide band gap