Fig. 2From: Ultrasonic Substrate Vibration-Assisted Drop Casting (SVADC) for the Fabrication of Photovoltaic Solar Cell Arrays and Thin-Film DevicesLaser images of the PEDOT: PSS films made by drop casting. a Case 2 of Table 1 (stationary substrate). b Case 6 of Table 1 (vibrating substrate). Electrical conductivities are shown on the images. The image area is 600 × 700 μmBack to article page