Sea-Urchin-Like ZnO Nanoparticle Film for Dye-Sensitized Solar Cells

Figure 2

SEM pictures of sea-urchin-like ZnO nanoparticles after (a) 2 hr deposition and (b) 8 hr deposition. (c) The detailed structure morphology of the nanoparticle (8 hr deposition).

(a)

(b)

(c)