title: Efficient and uniform planar-type perovskite solar cells by simple sequential vacuum deposition.
abstract: A novel sequential layer-by-layer sub-100 °C vacuum-sublimation method to fabricate planar-type organometal halide perovskite solar cells is developed. Very uniform and highly crystalline perovskite thin films with 100% surface coverage are produced. The cells attain maximum and average efficiencies up to 15.4% and 14%, respectively. This low- temperature, all-vacuum process is suitable for a wide variety of rigid and flexible applications.
authors.affiliation: Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.
authors.forename: Chang-Wen
authors.initials: CW
authors.lastname: Chen
authors.forename: Hao-Wei
authors.initials: HW
authors.lastname: Kang
authors.forename: Sheng-Yi
authors.initials: SY
authors.lastname: Hsiao
authors.forename: Po-Fan
authors.initials: PF
authors.lastname: Yang
authors.forename: Kai-Ming
authors.initials: KM
authors.lastname: Chiang
authors.forename: Hao-Wu
authors.initials: HW
authors.lastname: Lin
keywords: layer-by-layer fabrication; organometal halide perovskites; perovskite solar cells; vacuum deposition