Fig. 2From: Ag2S/CdS/TiO2 Nanotube Array Films with High Photocurrent Density by Spotting Sample Method a, b The SEM images of the top surface morphologies and a view of cracked TiO2 nanotubes anodized (10 °C) at 60 V for 30 min. c The SEM images of the top surface morphologies of CdS/TNTs fabricated using successive ionic layer adsorption and reaction (SILAR) method. d The TEM images of the top surface morphologies of the Ag2S/CdS/TNTs obtained via SSMBack to article page