Fig. 4: Spatial distribution of the E-field at 450 nm, 550 nm, and 600 nm within the Au-22.5 device.
From: Two quasi-interfacial p-n junctions observed by a dual-irradiation system in perovskite solar cells
a illumination at the FTO side; b illumination at the Au/ITO side; c illumination from both ITO and FTO sides.
