Mitigating residual MA+ for stable FAPbI3 perovskite photovoltaics

Zhao, Ke; Yao, Libing; DEĞER, CANER; Zhang, Xu; Shen, Jiahui; Miao, Xiaohe; Shi, Pengju; Luo, Yixin; Jin, Donger; Tian, Yuan; Xu, Jiazhe; Zhang, Shaochen; Liu, Qingqing; Chu, Shenglong; Wang, Xiaonan; Tian, Liuwen; Yavuz, Ilhan; Xue, Jingjing; Wang, Rui

doi:10.1038/s41467-025-65045-y

Mitigating residual MA+ for stable FAPbI3 perovskite photovoltaics

Zhao K., Yao L., DEĞER C., Zhang X., Shen J., Miao X., ...Daha Fazla

Nature Communications, cilt.16, sa.1, 2025 (SCI-Expanded, Scopus)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 16 Sayı: 1
Basım Tarihi: 2025
Doi Numarası: 10.1038/s41467-025-65045-y
Dergi Adı: Nature Communications
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Chemical Abstracts Core, EMBASE, Geobase, INSPEC, MEDLINE, Directory of Open Access Journals, Nature Index
Marmara Üniversitesi Adresli: Evet

Özet

Perovskite solar cells (PSCs) based on formamidinium lead iodide (FAPbI₃) demonstrate near-ideal bandgaps approaching the Shockley-Queisser efficiency limit, yet residual MA⁺ from methylammonium chloride (MACl) additives compromises their operational stability under thermal/light stress. Therefore, we developed an α-phase-assisted antisolvent method employing MACl-free precursors to fabricate α-FAPbI3 films. These films exhibit enhanced thermal stability and structural integrity, which were comprehensively characterized using multiple techniques. The optimized devices achieved a 26.1% power conversion efficiency (PCE), ranking among one of the highest reported values for FAPbI3-based inverted PSCs, and exhibit sustained stability under accelerated aging conditions. This strategy resolves the MA⁺-induced degradation bottleneck, paving the way for commercially viable high-performance PSCs.