Figure 4
From: Ultrathin polymeric films for interfacial passivation in wide band-gap perovskite solar cells
Variation of main normalized photovoltaic parameters (a) output power, (b) short-circuit photocurrent, (c) open circuit voltage, and (d) fill factor of anti-solvent-manufactured devices with two passivation layers (blue curve), one passivation layers (red curve) and without passivation layers (black curve) aged at room temperature after 140 h in a nitrogen atmosphere.
