Figure 3: Analysis of the synergetic effect. | Nature Communications

Figure 3: Analysis of the synergetic effect.

From: Strong interactive growth behaviours in solution-phase synthesis of three-dimensional metal oxide nanostructures

Figure 3

(a–b) Scanning electron microscopy (SEM) images (70° tilt view) of ZnO rod arrays with diameters in column gradually decreasing from 800 to 200 nm at Lc–c of 800 nm (a) and Lc–c of 3 μm (b). Cb is set to 2.5 mM for both cases. For direct comparison, each image of rods in a is inserted right after the corresponding rods with the same diameters (white boxes in b). Scale bars, 1 μm. (c) SEM image of linear arrays of small diameter rods (DZnO=230 nm) between thicker rods (DZnO=625 nm) with an Lc–c of 1 μm (see Supplementary Fig. 1, type III). Scale bar, 1 μm. (d) Plot of HZnO as a function of position with different Lc–c values (black square: 1 μm; red circle: 1.5 μm; blue triangle: 2 μm). For Lc–c≤1.5 μm, thin rods (DZnO=230 nm) immediately adjacent to thicker rods (DZnO=625 nm, marked with larger open symbols) are taller than those in the middle of the array.

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