MIT researchers have created a breakthrough solar technology: ultra-thin, ultra-light solar cells that are so flexible they can be printed onto almost any surface. Despite being thinner than a sheet of paper, these solar cells are powerful enough to generate electricity even from low indoor lighting. • These new solar cells are only a few micrometers thick and weigh about one-hundredth as much as traditional panels. • They can be printed using electronic inks, allowing large sheets to be manufac