fig1
![Evolved photovoltaic performance of MAPbI<sub>3</sub> and FAPbI<sub>3</sub>-based perovskite solar cells in low-temperatures](https://image.oaes.cc/545753e5-6130-44b9-aadb-f4488a7263f5/em3086.fig.1.jpg)
Figure 1. The morphology of perovskite films at room temperature: (A) MAPbI3 film; (B) FAPbI3 film.
Figure 1. The morphology of perovskite films at room temperature: (A) MAPbI3 film; (B) FAPbI3 film.
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