title: Solution-Processed Planar Perovskite Solar Cell Without a Hole Transport Layer.
abstract: Solar cells with a structure of ITO/ZnO/CH3NH3PbI3/graphite/carbon black electrode were fabricated by spin coating at ambient conditions. PbI2 thin films were converted into CH3NH3PbI3 perovskite by reacting with CH3NH3I in solution. The incorporation of electrochemically exfoliated graphite improved the fill factor, open circuit potential and short circuit current density. The best device yielded 10.2% power conversion efficiency.
authors.affiliation: Department of Chemistry, Center for Optical Materials Science and Engineering Technologies (COMSET), Clemson University, Clemson, South Carolina 29634, United States.
authors.forename: Yi
authors.initials: Y
authors.lastname: Jin
authors.affiliation: Department of Chemistry, Center for Optical Materials Science and Engineering Technologies (COMSET), Clemson University, Clemson, South Carolina 29634, United States.
authors.forename: George
authors.initials: G
authors.lastname: Chumanov
keywords: exfoliated graphite; perovskite; solar cell; solution-process; zinc oxide