Stanford scientists demonstrate a robotic device that manufactures perovskite solar cells at a rate of 40 feet per minute. The record-fast processor uses two nozzles to make thin films of photovoltaic perovskite. One nozzle spray-coats a chemical solution onto a pane of glass, while the other releases a burst of highly reactive ionized gas or plasma. The patented device was invented by Prof. Reinhold Dauskardt and his Stanford Engineering colleagues. (Credit: Nick Rolston, Mark Shwartz)
