title: Inverted planar NH2CH=NH2PbI3 perovskite solar cells with 13.56% efficiency via low temperature processing.
abstract: In this work, NH2CH=NH2PbI3 (FAPbI3) was employed for light harvesting in inverted planer perovskite solar cells for the first time. Except for the silver cathode, all layers were solution-processed under or below 140 °C. The effect of the annealing process on device performance was investigated. The FAPbI3 solar cells based on a slowed-down annealing shows superior performance compared to the CH3NH3PbI3 (MAPbI3)-based devices, especially for the short circuit current density. A power conversion efficiency of 13.56% was obtained with high short circuit current density of 21.48 mA cm(-2). This work paves the way for low-temperature fabrication of efficient inverted planer structure FAPbI3 perovskite solar cells.
authors.affiliation: Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China. zkwang@suda.edu.cn lsliao@suda.edu.cn.
authors.forename: Da-Xing
authors.initials: DX
authors.lastname: Yuan
authors.forename: Adam
authors.initials: A
authors.lastname: Gorka
authors.forename: Mei-Feng
authors.initials: MF
authors.lastname: Xu
authors.forename: Zhao-Kui
authors.initials: ZK
authors.lastname: Wang
authors.forename: Liang-Sheng
authors.initials: LS
authors.lastname: Liao