Molecule Anchoring Strategy Promotes Vertically Homogeneous Crystallization and Aligned Interfaces for Efficient Pb–Sn Perovskite Solar Cells and Tandem Device
Gang Xing,
Changbo Li,
Weiyin Gao
et al.
Abstract:Narrow‐bandgap (NBG) Pb–Sn perovskites are ideal candidates as rear subcell in all‐perovskite tandem solar cells. Because Pb–Sn perovskites contain multiple components, the rational regulation of vertical structure and both interfaces of the film is primarily crucial to achieve high‐performing NBG perovskite solar cells (PSCs). Herein, a molecule anchoring strategy is developed to in situ construct Cs0.1MA0.3FA0.6Pb0.5Sn0.5I3 perovskite film with vertically aligned crystals and optimized interfaces. Specifical… Show more
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