Doping Efficiency in Cobalt-Doped ZnO Nanostructured Materials

Figure 6

Tauc plot to calculate the bandgap of (a) 0% and (b) 15% cobalt-doped ZnO at 0.1 M precursor using cobalt nitrate. (c) Bandgap variation with cobalt doping for different precursor concentrations.

(a)

(b)

(c)