Customization of Sn2P2S6 ferroelectrics by post-growth solid-state diffusion doping

Abstract

For the first time, we demonstrated successful post-synthesis incorporation of metal dopants at elevated temperature into a host structure of Sn₂P₂S₆, known as the grandfather of dichalcogenide ferroelectrics with a formula M₂P₂X₆ (M = metal and X = chalcogen).