title: π-Conjugated Lewis Base: Efficient Trap-Passivation and Charge-Extraction for Hybrid Perovskite Solar Cells.
abstract: A π-conjugated Lewis base is introduced into perovskite solar cells, namely, indacenodithiophene end-capped with 1.1-dicyanomethylene-3-indanone (IDIC), as a multifunctional interlayer, which combines efficient trap-passivation and electron-extraction. Perovskite solar cells with IDIC layers yield higher photovoltages and photocurrents, and 45% enhanced efficiency compared with control devices without IDIC.
authors.affiliation: Department of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Yuze
authors.initials: Y
authors.lastname: Lin
authors.affiliation: Department of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Liang
authors.initials: L
authors.lastname: Shen
authors.affiliation: Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Jun
authors.initials: J
authors.lastname: Dai
authors.affiliation: Department of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Yehao
authors.initials: Y
authors.lastname: Deng
authors.affiliation: State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Department of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Yang
authors.initials: Y
authors.lastname: Bai
authors.affiliation: Department of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Xiaopeng
authors.initials: X
authors.lastname: Zheng
authors.affiliation: Department of Materials Science and Engineering, College of Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing, 100871, China.
authors.forename: Jiayu
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Yanjun
authors.initials: Y
authors.lastname: Fang
authors.affiliation: Department of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Haotong
authors.initials: H
authors.lastname: Wei
authors.affiliation: State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Ma
authors.affiliation: Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Xiao Cheng
authors.initials: XC
authors.lastname: Zeng
authors.affiliation: Department of Materials Science and Engineering, College of Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing, 100871, China.
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Zhan
authors.affiliation: Department of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Jinsong
authors.initials: J
authors.lastname: Huang
keywords: charge extraction; perovskite solar cells; trap passivation; π-conjugated Lewis base