Scientists claims record-breaking 25.7% efficency for perovskite-organic tandem solar cell

Conceived by a research team from Germany's University of Potsdam and the Chinese Academy of Sciences, the tandem cell is based on a wide-bandgap perovskite bottom cell and a narrow-bandgap organic top device. The researchers used a compound known as cyclohexane 1,4-diammonium diiodide for suface passivation. Researchers from the University of Potsdam in Germany and the Chinese Academy of Sciences claim to have achieved a record-breaking power conversion efficiency of 25. 7% for a tandem solar cell based on a wide-bandgap perovskite bottom cell and a narrow-bandgap organic top device. The scientists ...

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