title: Layer-by-layer growth of CH₃NH₃PbI(3-x)Clx for highly efficient planar heterojunction perovskite solar cells.
abstract: A layer-by-layer approach is developed to prepare uniform and compact CH₃NH₃PbI(3-x)Clx perovskite films for perovskite solar cells with a high efficiency up to 15.12% and an improved stability. Moreover, a record high efficiency of 12.25% is achieved for these flexible perovskite solar cells. This study represents an important step forward in developing high-performance and stable perovskite solar cells.
authors.affiliation: Center of Advanced Science and Engineering for Carbon (Case4Carbon), Department of Macromolecular Science and Engineering, Case School of Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio, 44106, USA.
authors.forename: Yonghua
authors.initials: Y
authors.lastname: Chen
authors.forename: Tao
authors.initials: T
authors.lastname: Chen
authors.forename: Liming
authors.initials: L
authors.lastname: Dai
keywords: flexible solar cells; layer-by-layer growth; perovskite solar cells; planar heterojunction; solar cells