Flipping a chemical switch may result in more stable perovskite solar cells
May 01, 2016Perovskite applicationsSolarStability
Researchers from Brown University, the National Renewable Energy Laboratory (NREL) and the Chinese Academy of Sciences' Qingdao Institute of Bioenergy and Bioprocess Technology came up with a way of "flipping a chemical switch" that converts one type of perovskite into another - a type that has better thermal stability and is a better light absorber. This achievement could be one more step toward bringing perovskite solar cells to the mass market......
......Laboratory scale perovskite solar cells made using this new method showed efficiency of around 18% - not far off the 20%-25% achieved by silicon solar cells. The team plans to continue to work with the method in order to further improve the efficiency of the cells, but this initial work demonstrates a promising new fabrication route.