Figure 5From: Controllable synthesis of ZnO nanostructures on the Si substrate by a hydrothermal routePlan-view and cross-sectional (insets) SEM images of ZnO nanorods obtained at different temperatures and concentrations. Temperatures (a) 60°C and (b) 85°C at a concentration of 0.025 M for 5 h; concentrations of (c) 0.01 M and (d) 0.03 M at 80°C for 5 h.Back to article page