title: Thin Insulating Tunneling Contacts for Efficient and Water-Resistant Perovskite Solar Cells.
abstract: Tunneling contacts made of any insulating polymers, a champion technology in silicon solar cells, are shown to increase the stabilized efficiency of perovskite solar cells (PSCs) to 20.3%. The tunneling layers spatially separate photo-generated electrons and holes at the perovskite-cathode interface and reduce charge recombination. The tunneling layers made of hydrophobic polymers also significantly enhance the resistance of PSCs to water-caused damage.
authors.affiliation: Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Qingfeng
authors.initials: Q
authors.lastname: Dong
authors.affiliation: Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Tao
authors.initials: T
authors.lastname: Li
authors.affiliation: Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Alexei
authors.initials: A
authors.lastname: Gruverman
authors.affiliation: Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
authors.forename: Jinsong
authors.initials: J
authors.lastname: Huang