Hidden spontaneous polarisation in the chalcohalide photovoltaic absorber Sn2SbS2I3

Perovskite-inspired materials aim to replicate the optical and electronic performance of the famous lead-halide perovskites, while eliminating issues with stability and toxicity. In this work, we focused on an emerging material in the class of mixed-metal chalcohalides; Sn2SbS2I3, which recently…



