Mechanochemical synthesis of pure phase mixed-cation/anion (FAPbI₃) _x (MAPbBr₃)_1-x hybrid perovskite materials: compositional engineering and photovoltaic performance.

ABSTRACT: Organic-inorganic hybrid perovskites have emerged as promising light harvesting materials for many optoelectronic devices. Here, we present a facile mechanochemical synthesis (MCS) route for the preparation of a series of pure phase mixed-cation/anion (FAPbI₃) _x (MAPbBr₃)_1-x (0 ≤ x ≤ 1) hybrid perovskite materials for high-efficiency thin-film perovskite solar cells (PSCs). The use of (α-FAPbI₃)_0.95(MAPbBr₃)_0.05 perovskite prepared by MCS for the thin-film PSCs achieves a maximum PCE of 15.9% from a current-voltage (J-V) scan, which stabilises at 15.4% after 120 s of the maximum power point output. Furthermore, PSCs based on (KPbI₃)_0.05(FAPbI

SUBMITTER: Tang S 

PROVIDER: S-EPMC8694776 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature