Completely Solvent-free Protocols to Access Phase-Pure, Metastable Metal Halide Perovskites and Functional Photodetectors from the Precursor Salts

Abstract

Mechanochemistry provided a solvent-free perovskite and device fabrication process Direct access to metastable phases of perovskites without postsynthetic annealing Energy-and time-efficient synthetic protocol demonstrated up to kilogram scales Procedures applicable for lead-based, air-sensitive tin(II), and other perovskites