Fig. 3From: Fundamental Study on the Fabrication of Inverted Planar Perovskite Solar Cells Using Two-Step Sequential Substrate Vibration-Assisted Spray Coating (2S-SVASC)UV-Vis transmission spectra of (a) FTO-coated glass, (b) PEDOT: PSS thin film fabricated on FTO-coated glass by spin coating followed by substrate vibration post treatment (SVPT), and (c) PEDOT: PSS thin film fabricated on FTO-coated glass by regular spin coatingBack to article page