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Figure 3 | Nanoscale Research Letters

Figure 3

From: Ultra-long metal nanowire arrays on solid substrate with strong bonding

Figure 3

Images of Cu nanowire arrays on Si substrate. (a) Optical image of non polished sample; (b) top view SEM image of non polished sample showing approximately 30% pore filling; (c) cross sectional view SEM image of non polished sample showing the length of nanowires is about 40 to 50 μm; (d) optical image of polished sample shows mirror surface with a large circular area in diameter of 25 mm; (e) top view SEM image of polished sample with 20-μm wires down from the top surface, showing 98% pore filling; (f) cross sectional SEM image of polished sample showing the nanowire arrays with uniform length of approximately 30 μm after the AAM was dissolved.

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