A scalable fabrication method using a green solvent, γ-valerolactone, is developed to prepare high-quality formamidinium lead iodide perovskite films. Interactions between the solvent and precursor materials stabilize the perovskite ink, which has a long shelf life and wide processing window. Passivation of the films with tributylmethylammonium enables the realization of a high-efficiency perovskite solar module.
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References
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This is a summary of: Miao, Y. et al. Green solvent enabled scalable processing of perovskite solar cells with high efficiency. Nat. Sustain. https://doi.org/10.1038/s41893-023-01196-4 (2023).
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A green solvent increases the stability of a perovskite ink for scalable processing. Nat Sustain 6, 1302–1303 (2023). https://doi.org/10.1038/s41893-023-01197-3
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DOI: https://doi.org/10.1038/s41893-023-01197-3
