Influence of OH⁻ Ion Concentration on the Surface Morphology of ZnO-SiO₂ Nanostructure

Figure 1

(a) SEM image of as-grown bare ZnO on glass substrate using 0.03 M ZnSO₄ and 1.0 M NH₄OH showing hexagonal rods and (b) corresponding FTIR spectra.

(a)

(b)