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Figure 2 | Nanoscale Research Letters

Figure 2

From: Direct selective growth of ZnO nanowire arrays from inkjet-printed zinc acetate precursor on a heated substrate

Figure 2

SEM pictures of the hydrothermally grown ZnO nanowire array on the inkjet-printed Zn acetate patterns. (a) ZnO nanowire array size variation at increased substrate heating; room temperature, 30°C, 40°C, 50°C, 60°C, and 70°C heating from left to right. Inset schematics show the cross sectional view of the ZnO nanowire array. (b) Magnified SEM pictures of 50°C, 60°C, and 70°C from left to right. Blue dotted lines indicate the elevated ZnO array at the center of the droplet due to substrate heating.

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