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• January 1, 2016
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Tandem solar cells are simply better

Stacking two solar cells one over the other has advantages: Because the energy is ‘harvested’ in two stages, and overall the sunlight can be converted to electricity more efficiently. Researchers have come up with a procedure that makes it possible to produce thin film tandem solar cells in which a thin perovskite layer is used. The processing of perovskite takes place at just 50 degrees Celsius and such a process is potentially applicable for low cost roll-to-roll production in future.