A Chinese research team has built an all-perovskite tandem solar cell with a 19.6%-efficient wide bandgap top cell relying on a 2D/3D heterostructure and narrow bandgap bottom cell with a 21.3% efficiency. The tandem device showed remarkable stability by retaining 90% of its initial efficiency after 855?h of continuous operation.A research group from China has developed an all-perovskite tandem solar cell based on a wide bandgap perovskite top cell relying on a two-dimensional/three-dimensional heterostructure and a narrow bandgap bottom cell. Perovskite cells built with 2D hybrid materials are ...Den vollständigen Artikel lesen ...