Photos 1/3 A Kodak roll-to-roll printer deposits yellow perovskite solution on plastic. Photo courtesy of EMC. Photo courtesy of 2/3 After the plastic is coated with perovskite solution, it comes out the other end of the printer dry. Photo courtesy of EMC. Photo courtesy of 3/3 After the plastic is coated with perovskite solution, it comes out the other end of the printer dry. Photo courtesy of EMC. Photo courtesy of