title: Square-Centimeter Solution-Processed Planar CH3NH3PbI3 Perovskite Solar Cells with Efficiency Exceeding 15.
abstract: The preparation of uniform, high-crystallinity planar perovskite films with high-aspect-ratio grains over a square-inch area is demonstrated. The best power conversion efficiency (PCE) of 16.3% (stabilized output of ≈15.6%) is obtained for a planar perovskite solar cell (PSC) with 1.2 cm2 active area, and the PCE jumps to 18.3% (stabilized output of ≈17.5%) for a PSC with a 0.12 cm2 active area.
authors.affiliation: National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA.
authors.forename: Mengjin
authors.initials: M
authors.lastname: Yang
authors.affiliation: School of Engineering, Brown University, Providence, RI, 02912, USA.
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA.
authors.forename: Yining
authors.initials: Y
authors.lastname: Zeng
authors.affiliation: National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA.
authors.forename: Chun-Sheng
authors.initials: CS
authors.lastname: Jiang
authors.affiliation: School of Engineering, Brown University, Providence, RI, 02912, USA.
authors.forename: Nitin P
authors.initials: NP
authors.lastname: Padture
authors.affiliation: National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA.
authors.forename: Kai
authors.initials: K
authors.lastname: Zhu
keywords: growth mechanisms; perovskite films; power conversion efficiency; solar cells