Extended Data Fig. 4: The performance of pero-SCs with different chalcogenides.
From: Strain regulation retards natural operation decay of perovskite solar cells
a, SEM images of perovskite films based on different chalcogenides. The scale bar is 1 µm. b-d, Photovoltaic parameters for the devices with different concentration of different chalcogenides under AM1.5 G illumination (10 devices for each type).
