Figure 7

Photocurrent response of ZnO nanoparticles and PDPB-ZnO light harvesting nanoheterojunction.
(a) Schematic representation of photocurrent measurement set up using dye-sensitized solar cell geometry. (b) Photocurrent responses of PDPB-ZnO LHNH and ZnO NPs without any bias voltage under 1000 W m−2 incident power irradiation from a light source.