Doping Efficiency in Cobalt-Doped ZnO Nanostructured Materials

Figure 7

Photoluminescence (PL) spectra of cobalt-doped ZnO samples: (a) 0.1 M precursor with cobalt nitrate doping and (b) 0.1 M precursor with cobalt chloride doping. The inset shows the magnified area of the near band edge (NBE) peak.

(a)

(b)