About the seminar:

Perovskites, ABX3, have been identified as next-generation semiconducting and photovoltaic materials from hybrid halide perovskites reaching commercialization. One subset of perovskites that has been historically understudied are sulfur and chalcogenide containing perovskites. Owing to a change in electronegativity from classical halides or oxygen on the X-sites, these perovskites have softer, more polarizable bonds. This results in more applicable properties for semiconducting applications such as smaller bad gaps, increased electronic conductivity, and increased thermal stability. In part, the difficult synthesis conditions of long times and extremely hot temperatures have limited the discovery of new Sulfur/chalcogenide based perovskites. This seminar will introduce a work showcasing a newly discovered reaction pathway to synthesize the chalcogenide perovskite, BaZrS3, featuring lower temperate growth mechanisms, higher precursor reactivity, and halide catalysts that improve upon current literature synthesis for this class of material making new materials discovery more accessible.