Mechanosynthesis of pure phase mixed-cation MAxFA1-xPbI3 hybrid perovskite: photovoltaic performance and electrochemical properties
a Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Interfaces, School of Basic Sciences, Ecole Polytechnique Federale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
b Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
c Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
First published online 12 Apr 2017.
Paper at Publisher’s website
We report a facile mechanochemical route for the stabilization of a structurally stable α-FAPbI3 perovskite by fine and controllable stoichiometry modification in mixed-cation (MA)x(FA)1-xPbI3 perovskite. Moreover, the mechanoperovskite with a composition of (MA)0.25(FA)0.75PbI3 was used for solar cells fabrication showing power conversion efficiency (PCE) of 14.98% with the high short circuit current (JSC) density at 23.7 mA/cm2.