PVWind1

. . . The energy needs of the world could all, in principle, be fulfilled by one single source — the sun. There are challenges in making this a reality, however: affordability first, and finding a way to capture this energy efficiently to turn it into electricity. Recently, a new material known as perovskite has seen the light of day and within just a few years it has started rivaling the efficiency of traditional photovoltaic solar cells, …

…In a very short time, perovskite has begun to produce extremely high efficiencies and there’s ‘perovskite fever’ going on,…

http://www.cnn.com/2014/09/18/tech/innovation/solar-cells-of-the-future/