Perovskite solar cells are a new type of solar cell made from a class of man-made materials called perovskites. Perovskites are a different material than the silicon wafers that make up traditional solar panels. They have a crystallographic structure that makes them highly effective at converting photons of light from the sun into usable electricity. Perovskite solar cells represent a high-efficiency, low-cost solar technology, and shall be the future replacement for traditional silicon solar panels.