Figure 4
From: Fully Spray-Coated Triple-Cation Perovskite Solar Cells
(a) Current-voltage characteristics for “champion” fully spray-cast perovskite solar cells with an active area of 2.5 mm2 (small-area) and 15.4 mm2 (large-area). The reverse scan PCE for these sweeps are 19.4% and 16.3% for the small and large-area cells respectively. (b) Output power of the champion devices when held (for 60 s) at a fixed voltage close to the maximum power point, indicating a stabilised PCE of 18.7% and 16.3% for small and large-area cells respectively. (c) A histogram of reverse-scan PCE data from 43 fully spray-cast small-area devices and 45 large-area devices.
