A new study has found both the cause and a solution for the pesky tendency of perovskite solar cells to degrade in sunlight, a research breakthrough potentially removing one roadblock to commercialization for this promising technology.
Empa-Swiss Federal Laboratories for Material Science and Technology has now succeeded in making tandem solar cells that are based on polycrystalline thin films, and the methods are suitable for large area low cost processing
Perovskite solar cells are composed of a sandwich of layers that work together to transform light into electricity.
Perovskite solar cells are relatively cheap to make, and the efficiency with which they can convert sunlight into electricity has been increasing rapidly in recent years.
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The new method involves a room-temperature solvent bath to create perovskite crystals, rather than the blast of heat used in current crystallization methods