Mixed perovskite based on methyl-ammonium and polymeric-ammonium for stable and reproducible solar cells.

We have described the compositional engineering of mixed perovskite based on methyl- and polymeric-ammonium. The resulting perovskite films containing moisture-resistant 2D materials exhibit a maximum power conversion efficiency of over 15% with high reproducibility and good stability, offering greater tunability at the molecular level for material optimization.

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