Figure 1From: Effect of variation of average pore size and specific surface area of ZnO electrode (WE) on efficiency of dye-sensitized solar cellsTypical TEM images of the mesoporous ZnO samples synthesized using different concentrations of NaOH. (A) 0.15 M, (B) 0.2 M, (C) 0.25 M, (D) 0.3 M, (E) 0.35 M, (F) 0.4 M, (G) 0.45 M, and (H) 0.5 M. The samples were calcinated at 315°C for 12 h.Back to article page