Doping Efficiency in Cobalt-Doped ZnO Nanostructured Materials

Figure 5

Absorption spectra of 0-20% cobalt-doped ZnO nanostructures: (a) 1 M precursor using nitrate (inset shows 0.1 M precursor using nitrate) and (b) 1 M precursor using chloride (inset shows 0.1 M precursor using chloride).

(a)

(b)