Low-Temperature, Solution-Based Synthesis of Luminescent Chalcogenide Perovskite BaZrS Nanoparticles.

Chalcogenide perovskites constitute a promising earth-abundant, non-toxic, and robust semiconductor family with the potential to compete with hybrid perovskites as high-quality photovoltaic absorbers. However, a low-temperature, solution-based synthesis route has eluded researchers in this area. Here we report the colloidal synthesis of chalcogenide perovskite BaZrS nanoparticles at 330 °C in organic solvent.