Fig. 9From: Fundamental Study on the Fabrication of Inverted Planar Perovskite Solar Cells Using Two-Step Sequential Substrate Vibration-Assisted Spray Coating (2S-SVASC)Cross sectional SEM image taken across the cleaved edge of a planar glass/FTO/PEDOT:PSS/CH3NH3I3−x Cl x /PCBM/Al device fabricated by the 2S-SVASC methodBack to article page