Feng Gao’s research focuses on creating materials for cheaper, more efficient, and environmentally friendly solar cells. He believes that the mineral pervoskit is the solution.

Perovskite solar cells could also be made so thin and flexible that they could be painted on windows, or entire facades in all sorts of colors. And because it is so light-sensitive, it is believed that in the future you could charge your mobile phone with ordinary indoor lighting if it was powered by perovskite solar cells. The problem is that pervoskit contains lead. The goal of Feng Gao is now to replace it with other metals.