High‐Temperature Driven Recrystallization for Stable Dopant‐Free α‐FAPbI3 Perovskite Solar Cells
2024
Stable Dopant-Free α-FAPbI3 Perovskite Solar Cells
publication
Evidence: high
Author Information
Author(s): L. Xiao, X. Xu, J. Zhao, C. Wang, Z. Lu, L. Li, L. He, Y. Chen, G. Zou
Primary Institution: Soochow University
Hypothesis
Can high-temperature recrystallization improve the stability and efficiency of α-FAPbI3 perovskite solar cells?
Conclusion
The study demonstrates that high-temperature recrystallization leads to stable, high-efficiency α-FAPbI3 perovskite solar cells with improved damp-heat stability.
Supporting Evidence
- The α-FAPbI3 film prepared by hot-press at 300 °C achieves an average grain size of ≈3 µm.
- The resulting solar cell delivers a power conversion efficiency as high as 24.06%.
- The HPA-300 FAPbI3 film remains stable in damp-heat conditions for over 1000 hours.
Takeaway
This study shows that heating and pressing a special material can make better solar cells that last longer and work more efficiently.
Methodology
The researchers used a hot-press-assisted recrystallization process at 300 °C to create phase-pure α-FAPbI3 films.
Digital Object Identifier (DOI)
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