Figure 1From: Efficient p-type dye-sensitized solar cells with all-nano-electrodes: NiCo2S4 mesoporous nanosheet counter electrodes directly converted from NiCo2O4 photocathodesXRD pattern and SEM images of a sample. (a) XRD pattern of NiCo2S4 nanosheet films and representative SEM images of (b) large-scale and uniform growth, (c) cross section, and (d) sheet-like and porous character.Back to article page