Research Article

Influence of pH, Precursor Concentration, Growth Time, and Temperature on the Morphology of ZnO Nanostructures Grown by the Hydrothermal Method

Figure 4

SEM images of ZnO NSs on Si substrate with different precursor concentrations of the growth aqueous solution (a) at 25 mM; (b) 50 mM; (c) 100 mM; (d) 300 mM. Inset shows the magnified view of the ZnO NSs (scale bar = 100 nm).
269692.fig.004a
(a)
269692.fig.004b
(b)
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(c)
269692.fig.004d
(d)