Recent Development of Graphene-Based Cathode Materials for Dye-Sensitized Solar Cells

Figure 11

(a) and (b) SEM images of CZTS microspheres. The inset in (a) is HRTEM image of CZTS nanoparticle, (c) SEM image of graphene, and (d) SEM image of annealed CZTS/graphene composites films [38].

(a)

(b)

(c)

(d)