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A green solvent increases the stability of a perovskite ink for scalable processing

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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Fig. 1: GVL-based ink for the fabrication of PSCs and large-size perovskite solar modules.


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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. (2023).

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A green solvent increases the stability of a perovskite ink for scalable processing. Nat Sustain 6, 1302–1303 (2023).

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