Mechanosynthesis of pure phase mixed-cation MAxFA1−xPbI3 hybrid perovskites: photovoltaic performance and electrochemical properties†
Abstract
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 perovskites. Moreover, the mechanoperovskite with a composition of (MA)0.25(FA)0.75PbI3 was used for solar cell fabrication showing a power conversion efficiency (PCE) of 14.98% with a high short circuit current (JSC) density at 23.7 mA cm−2.