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Communications Materials (2026)
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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.
This study was funded by the Scientific and Technological Research Council of Turkey (TUBITAK) ARDEB 1001 grant No 122F425. Computing resources used in this work were provided by the National Center of High-Performance Computing of Türkiye (UHEM) under grant no: 5016102023.
Physics Department, Marmara University, Istanbul, Türkiye
Nazlıcan Şahin Sütcü, Neşe Güngör, Ayşenur Corcor, Aleyna Nar, Kadir Esmer, Caner Değer, Mustafa Alevli & Ilhan Yavuz
Department of Physics, Yildiz Technical University, Istanbul, Türkiye
Pelin Kavak
Chemistry Department, Marmara University, Istanbul, Türkiye
Irem Topal & Emrah Çakmakçı
Department of Physics, Gebze Technical University, Kocaeli, Türkiye
Fikret Yıldız
Department of Metallurgical and Materials Engineering, Necmettin Erbakan University, Konya, Türkiye
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Correspondence to Mustafa Alevli or Ilhan Yavuz.
The authors declare no competing interests.
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Şahin Sütcü, N., Güngör, N., Kavak, P. et al. Magnetic field induction and doping synergy enable efficient and stable perovskite solar cells. Commun Mater (2026). https://doi.org/10.1038/s43246-026-01224-8
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DOI: https://doi.org/10.1038/s43246-026-01224-8
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Communications Materials (Commun Mater)
ISSN 2662-4443 (online)
© 2026 Springer Nature Limited
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