Highlighting a Bright Future for Chalcogenide Perovskites

Chalcogenide perovskites are an intriguing candidate for stable and nontoxic semiconductor devices, including multijunction photovoltaics. Experimental evidence that these materials can be made with high optoelectronic quality has often eluded researchers but has finally been shown in a recent publication by the Dimitrievska group. These findings motivate further efforts to develop of the first chalcogenide perovskite solar cells and better understand defect chemistry in these materials.