fig4
Figure 4. The photovoltaic performance of MAPbI3-based PSCs (blue points) and FAPbI3-based PSCs (red points) from 290 to 150 K: (A) PCE; (B) FF; (C) VOC; and (D) JSC. PSCs: Perovskite solar cells; PCE: power conversion efficiency; FF: fill factor; VOC: open-circuit voltage; JSC: short-circuit current.
