Hierarchical Nanostructures for Solar Cells - Hierarchical Nanostructures for Energy Devices - page 62

Figure 4.1 ZnO-nanowire dye-sensitized solar cells. (a) Schematic diagram of the cell with a photoelectrode comprised of the ZnO-
nanowire array. (b) Cross-sectional SEM image of the ZnO-nanowire array. (c) Comparative performance of nanowire and
nanoparticle cells.
Reproduced with permission from ref. 6. Nature Publishing Group.