Scientists in China found that a change to the hole transport layer material helped to reduce voltage loss in a perovskite solar cell. The discovery demonstrates a promising new pathway to overcoming a major challenge for perovskites - particularly those used as the top layer in a tandem device.Though tandem solar cells featuring at least one perovskite are well on their way to commercial production, there are still a few challenges holding the technology back from its full potential. One of these concerns the wide bandgap required for a top cell, which often comes with large open-circuit voltage ...Den vollständigen Artikel lesen ...
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