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<p>We present magnetic-field induced facile fabrication of highly crystalline, stable, and high efficiency formamidinium-lead-iodide perovskite solar cells. This work represents the first demonstration of computation-guided dopant screening combined with field-assisted perovskite crystallization. First-principles dopant screening identified neodymium as the optimal lattice-stabilizing candidate, guiding our subsequent experimental efforts. Synergistically coupling neodymium doping with field-assisted crystallization led to pronounced improvements in film quality, photovoltaic performance, and operational stability. Devices fabricated under magnetic field achieved a power conversion efficiency of ~21.1%, whereas those incorporating 0.08% neodymium reached a record efficiency of&#xa0;23.9%. The unencapsulated device retained more than 95% of its initial efficiency after ~900 h of maximum power point tracking at room-temperature and 50% relative humidity under continuous simulated illumination. With emphasis on utilizing dopant-field synergy to boost device performance, our systematic and effective approach, that bridges theoretical and experimental procedures, offers a rational design path toward high-efficiency, long-term-stable perovskite photovoltaics.</p><p></p>

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Magnetic field induction and doping synergy enable efficient and stable perovskite solar cells

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月3日

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  • Nazlıcan Şahin Sütcü,
  • Neşe Güngör,
  • Pelin Kavak,
  • Ayşenur Corcor,
  • Aleyna Nar,
  • Irem Topal,
  • Kadir Esmer,
  • Emrah Çakmakçı,
  • Fikret Yıldız,
  • Seçkin Akın,
  • Caner Değer,
  • Mustafa Alevli,
  • Ilhan Yavuz

摘要

We present magnetic-field induced facile fabrication of highly crystalline, stable, and high efficiency formamidinium-lead-iodide perovskite solar cells. This work represents the first demonstration of computation-guided dopant screening combined with field-assisted perovskite crystallization. First-principles dopant screening identified neodymium as the optimal lattice-stabilizing candidate, guiding our subsequent experimental efforts. Synergistically coupling neodymium doping with field-assisted crystallization led to pronounced improvements in film quality, photovoltaic performance, and operational stability. Devices fabricated under magnetic field achieved a power conversion efficiency of ~21.1%, whereas those incorporating 0.08% neodymium reached a record efficiency of 23.9%. The unencapsulated device retained more than 95% of its initial efficiency after ~900 h of maximum power point tracking at room-temperature and 50% relative humidity under continuous simulated illumination. With emphasis on utilizing dopant-field synergy to boost device performance, our systematic and effective approach, that bridges theoretical and experimental procedures, offers a rational design path toward high-efficiency, long-term-stable perovskite photovoltaics.