Figure 11

Dye-sensitized photovoltaic wire prepared by using a graphene/Pt composite fiber as the counter electrode and a Ti wire impregnated with TiO₂ nanotubes as the working electrode. (a) Schematic illustration. (b) Scanning electron microscope (SEM) image. (c, d) Photographs of photovoltaic wires sealed in a capillary glass tube and flexible fluorinated ethylene propylene tube, respectively. Reproduced with permission. Copyright 2013 from Yang et al.⁶⁸