title: High-efficiency inverted polymer solar cells with transparent and work-function tunable MoO(3)-Al composite film as cathode buffer layer.
abstract: High-efficiency inverted polymer solar cells based on PCDTBT:PC(70)BM blend with the MoO(3)-Al composite film as the cathode buffer layer and the MoO(3)/Al as the anode have been demonstrated. A V(OC) of 0.88 V, a J(SC) of 10.88 mA cm(-2), a FF of 70.7% and a PCE of 6.77% are achieved. The MoO(3)-Al composite films are highly transparent with adjustable work functions which can be fine tuned based on the Al content in the composite, thus allowing us to optimize the interfacial property at cathode buffer layer/BHJ interfaces to reduce recombination loss and to improve the photovoltaic performance. This new approach has simplified the device fabrication and will render economizing in large scale applications.
authors.affiliation: Graduate School of the Chinese Academy of Sciences, Beijing, PR China.
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
authors.forename: Shuyan
authors.initials: S
authors.lastname: Shao
authors.forename: Gang
authors.initials: G
authors.lastname: Fang
authors.forename: Bin
authors.initials: B
authors.lastname: Meng
authors.forename: Zhiyuan
authors.initials: Z
authors.lastname: Xie
authors.forename: Lixiang
authors.initials: L
authors.lastname: Wang
mesh_terms: D000535:Aluminum / Q000737:chemistry*; D004566:Electrodes; D037741:Fullerenes / Q000737:chemistry; D008982:Molybdenum / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D011108:Polymers; D011789:Quantum Theory; D012993:Solar Energy
chemical_list: D037741:Fullerenes; D010087:Oxides; D011108:Polymers; C082290:molybdenum trioxide; D008982:Molybdenum; D000535:Aluminum