Figure 2From: Improving the efficiency of ITO/nc-TiO2/CdS/P3HT:PCBM/PEDOT:PSS/Ag inverted solar cells by sensitizing TiO2 nanocrystalline film with chemical bath-deposited CdS quantum dotsAFM images of the films. (a) The AFM topography image and (b) the corresponding AFM phase image of the ITO/nc-TiO2 film. The AFM topography images of (c) the ITO/nc-TiO2/CdS(5) film and (d) the ITO/nc-TiO2/CdS(15) film.Back to article page