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Nature Energy (2026)
A crystallization strategy enables the successful deposition, through blade-coating under ambient conditions, of phase-pure, wide-bandgap perovskite films with a homogeneous halide distribution. Using this approach, a monolithic perovskite/Cu(In,Ga)Se2 tandem solar cell achieved a power conversion efficiency of 27.3% and exhibited high operational stability.
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Li, Z. et al. A review of perovskite/copper indium gallium selenide tandem solar cells. Sol. RRL 8, 2301059 (2024). A review article that presents the advantages of perovskite/CIGS tandem solar cells.
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Deng, Y. et al. Tailoring solvent coordination for high-speed, room-temperature blading of perovskite photovoltaic films. Sci. Adv. 5, eaax7537 (2019). This paper demonstrates that the dynamic balance between solvent removal and crystallization kinetics is of paramount importance for regulating the nucleation process and determining the final film quality.
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Bu, T. et al. Lead halide-templated crystallization of methylamine-free perovskite for efficient photovoltaic modules. Science 372, 1327–1332 (2021). This paper reports that formation of stable intermediate adducts through NMP coordination is a robust strategy for regulating the crystallization pathway and achieving high-quality films in narrow-bandgap perovskite systems.
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This is a summary of: Zhang, S. et al. Crystallization suppression of mixed-halide intermediates for perovskite/Cu(In,Ga)Se2 tandem solar cells with improved efficiency. Nat. Energy https://doi.org/10.1038/10.1038/s41560-026-01975-1 (2026).
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Suppressing intermediate crystallization for flexible tandem solar cells. Nat Energy (2026). https://doi.org/10.1038/s41560-026-01979-x
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DOI: https://doi.org/10.1038/s41560-026-01979-x
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Nature Energy (Nat Energy)
ISSN 2058-7546 (online)
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