title: Bismuth Based Hybrid Perovskites A3Bi2 I9 (A: Methylammonium or Cesium) for Solar Cell Application.
abstract: Low-toxic bismuth-based perovskites are prepared for the possible replacement of lead perovskite in solar cells. The perovskites have a hexagonal crystalline phase and light absorption in the visible region. A power conversion efficiency of over 1% is obtained for a solar cell with Cs3 Bi2 I9 perovskite, and it is concluded that bismuth perovskites have very promising properties for further development in solar cells.
authors.affiliation: Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, SE, 75120, Uppsala, Sweden.
authors.forename: Byung-Wook
authors.initials: BW
authors.lastname: Park
authors.affiliation: Department of Physics and Astronomy, Molecular and Condensed Matter Physics, Uppsala University, Box 516, SE, 75120, Uppsala, Sweden.
authors.forename: Bertrand
authors.initials: B
authors.lastname: Philippe
authors.affiliation: Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, SE, 75120, Uppsala, Sweden.
authors.forename: Xiaoliang
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Physics and Astronomy, Molecular and Condensed Matter Physics, Uppsala University, Box 516, SE, 75120, Uppsala, Sweden.
authors.forename: Håkan
authors.initials: H
authors.lastname: Rensmo
authors.affiliation: Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, SE, 75120, Uppsala, Sweden.
authors.forename: Gerrit
authors.initials: G
authors.lastname: Boschloo
authors.affiliation: Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, SE, 75120, Uppsala, Sweden.
authors.forename: Erik M J
authors.initials: EM
authors.lastname: Johansson
keywords: X-ray diffraction; bismuths; hybrid perovskites; photovoltaics; solar cells