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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: Low-Cost and High-Productivity Three-Dimensional Nanocapacitors Based on Stand-Up ZnO Nanowires for Energy Storage

Fig. 2

Cross-sectional SEM images of a the as-grown ZnO nanowires (NWs), b 10-nm AZO-coated ZnO NWs, cf ZnO NWs surrounded by 10 nm AZO and 5, 10, 15, and 20 nm Al2O3, respectively, g the structures with deposition of 150 nm AZO acting as the top electrode, h the fabricated capacitor with a pad (shown by the dark region), and the area without a pad (shown by the bright region). The insert shows the top view of the corresponding sample at a 50° tilt

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