%0 Journal Article %T Multi-cation perovskites prevent carrier reflection from grain surfaces %A Saidaminov, Makhsud I. %A Williams, Kristopher %A Wei, Mingyang %A Johnston, Andrew %A Quintero-Bermudez, Rafael %A Vafaie, Maral %A Pina, Joao M. %A Proppe, Andrew H. %A Hou, Yi %A Walters, Grant %A Kelley, Shana O. %A Tisdale, William A. %A Sargent, Edward H. %J Nature Materials %V 19 %N 4 %P 412-418 %@ 1476-1122 %D 2020-04-10 %I Nature Publishing Group UK %~ DeepDyve