title: Enhancing the performance of polymer photovoltaic cells by using an alcohol soluble fullerene derivative as the interfacial layer.
abstract: Alcohol soluble fullerene derivative (FN-C60) has been synthesized and used as a cathode interfacial layer for high-efficiency polymer solar cells (PSCs). To examine the function of the FN-C60 interfacial layer, polymer solar cells were fabricated with blends of P3:PC71BM, HXS-1:PC71BM, PDFCDTBT:PC71BM, and PDPQTBT:PC71BM as the active layer. In comparison to the bare Al electrode, power conversion efficiencies (PCEs) of P3:PC71BM, HXS-1:PC71BM, PDFCDTBT:PC71BM, and PDPQTBT:PC71BM based PSCs were increased from 3.50 to 4.64%, 4.69 to 5.25%, 2.70 to 4.60%, and 1.52 to 2.29%, respectively, when FN-C60/Al was used as the electrode. Moreover, the overall photovoltaic performances of PSCs with the FN-C60/Al electrode were better than those of cells with LiF/Al electrode, indicating that FN-C60 is a potential interfacial layer material to replace LiF.
authors.affiliation: Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Ministry of Education, Beijing Normal University, Beijing 100875, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Mei
authors.forename: Cuihong
authors.initials: C
authors.lastname: Li
authors.forename: Xue
authors.initials: X
authors.lastname: Gong
authors.forename: Heng
authors.initials: H
authors.lastname: Lu
authors.forename: Enquan
authors.initials: E
authors.lastname: Jin
authors.forename: Chun
authors.initials: C
authors.lastname: Du
authors.forename: Zhen
authors.initials: Z
authors.lastname: Lu
authors.forename: Li
authors.initials: L
authors.lastname: Jiang
authors.forename: Xiangyue
authors.initials: X
authors.lastname: Meng
authors.forename: Chunru
authors.initials: C
authors.lastname: Wang
authors.forename: Zhishan
authors.initials: Z
authors.lastname: Bo
mesh_terms: D000438:Alcohols / Q000737:chemistry; D011211:Electric Power Supplies; D004566:Electrodes; D037741:Fullerenes / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D012993:Solar Energy; D012997:Solvents / Q000737:chemistry
chemical_list: D000438:Alcohols; D037741:Fullerenes; D011108:Polymers; D012997:Solvents