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| Home > Publications database > Reducing energy barrier of δ-to-α phase transition for printed formamidinium lead iodide photovoltaic devices > print |
| 001 | 909653 | ||
| 005 | 20240712112950.0 | ||
| 024 | 7 | _ | |a 10.1016/j.nanoen.2021.106658 |2 doi |
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| 037 | _ | _ | |a FZJ-2022-03321 |
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| 100 | 1 | _ | |a Xu, Zhenhua |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Reducing energy barrier of δ-to-α phase transition for printed formamidinium lead iodide photovoltaic devices |
| 260 | _ | _ | |a Amsterdam [u.a.] |c 2022 |b Elsevier |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Recent progress in perovskite photovoltaics has witnessed a growing interest in formamidinium lead iodide (FAPbI3), primarily due to its high efficiency potential and excellent stability. However, the high energy barrier of δ-to-α phase transition presents a major hurdle to fabricate phase-pure α-FAPbI3 layers. Here, we report a two-step phase transition process to deposit high-quality photovoltaic α-FAPbI3 films by printing method. This is realized by judicious selection of a Lewis base N-methyl-2-pyrrolidone (NMP) and its counter Lewis acid, which enables the regulation of intermediary phase to reduce the energy barrier. With fine tuning the phase transition pathway, phase-pure and stable α-FAPbI3 perovskite films are obtained, which yield solar devices with a champion efficiency of 21.35%. The printed mini-modules with active areas of 12.32 cm2 and 55.44 cm2 are also fabricated, giving efficiencies of 17.07% and 14.17%, respectively. This work provides new insights of α-FAPbI3 crystallization for constructing efficient and stable printed photovoltaic devices. |
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| 700 | 1 | _ | |a Zeng, Linxiang |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Hu, Jinlong |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Wang, Zhenya |0 P:(DE-Juel1)185975 |b 3 |
| 700 | 1 | _ | |a Zhang, Putao |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Brabec, Christoph |0 P:(DE-Juel1)176427 |b 5 |
| 700 | 1 | _ | |a Forberich, Karen |0 P:(DE-Juel1)178784 |b 6 |
| 700 | 1 | _ | |a Mai, Yaohua |0 P:(DE-HGF)0 |b 7 |e Corresponding author |
| 700 | 1 | _ | |a Guo, Fei |0 P:(DE-HGF)0 |b 8 |e Corresponding author |
| 773 | _ | _ | |a 10.1016/j.nanoen.2021.106658 |g Vol. 91, p. 106658 - |0 PERI:(DE-600)2648700-7 |p 106658 - |t Nano energy |v 91 |y 2022 |x 2211-2855 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/909653/files/revisedmanuscript-%E5%89%AF%E6%9C%AC.docx |y OpenAccess |
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