title: Enhanced photovoltaic performance of perovskite CH₃NH₃PbI₃ solar cells with freestanding TiO₂ nanotube array films.
abstract: Freestanding TiO2 nanotube array films are fabricated and first applied as electrodes in perovskite CH3NH3PbI3 sensitized solar cells. The device demonstrates improved light absorption with more than 90% of light absorbed in the whole visible range and a reduced charge recombination rate, leading to a significant improvement of the photocurrent and efficiency. This study suggests a promising way of improving the conversion efficiency of perovskite solar cells through novel electrodes.
authors.affiliation: Department of Mechanical Engineering, University of Wisconsin Milwaukee, Wisconsin 53211, USA. cyuan@uwm.edu.
authors.forename: Xianfeng
authors.initials: X
authors.lastname: Gao
authors.forename: Jianyang
authors.initials: J
authors.lastname: Li
authors.forename: Joel
authors.initials: J
authors.lastname: Baker
authors.forename: Yang
authors.initials: Y
authors.lastname: Hou
authors.forename: Dongsheng
authors.initials: D
authors.lastname: Guan
authors.forename: Junhong
authors.initials: J
authors.lastname: Chen
authors.forename: Chris
authors.initials: C
authors.lastname: Yuan