Mathilde Fievez, E. Fayard, C. Roux, Wei Lin Leong, M. Manceau, S. Cros, S. Berson
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Tuning Precursors Ink Stoichiometry for High Efficiency Scalable Perovskite Photovoltaics
While impressive efficiency progress has been achieved for perovskite-based solar cells, process upscaling represents one of the main remaining hurdles to commercial applications. In this contribution, the development of a scalable method to process perovskite layers in air is presented. Combining gas-quenching and optimized precursors stoichiometry, pinholes-free films were obtained via low temperature solution processing. When integrated in single junction devices, power conversion efficiency > 18% was achieved on 10 cm2 devices.
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