Perovskite solar cells with laminated carbon electrodes reach 20.4% efficiency

Scientists in Germany report a method to boost performance of perovskite solar cells made with laminated carbon electrodes that are compatible with typical hole transport layers.Researchers at the Fraunhofer Institute for Solar Energy Systems ISE (Fraunhofer ISE) in Germany have shown that a solvent treatment of laminated carbon top electrodes in triple-cation perovskite solar cells improves performance, bringing carbon electrodes closer to being an alternative to metal electrodes. "Carbon-based electrodes are very promising for perovskite solar cells as they do not react with mobile ions. For ...

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