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Schematic for the synthesis of nanocables consisting of two materials that can be achieved via electrodeposition. (a) Sputtering a meshlike Au layer on one planar surface side of the AAO template. (b) Electrodepositing one material as the shells (marked in orange) of the cables. (c) Etching the caps on top of the deposited shells and sputtering a thick Au layer at the bottom of the shells. (d) Electrodepositing another material as cores (marked in blue) of the cables inside the first-deposited shells. (e) Removal of the AAO template.
(a) Scanning electron microscopy image of the Cu-Bi nanocable arrays. The inset is taken from the dashed rectangle. (b) The EDS analysis result of the dashed circle in (a), where Au is from the sputtered Au layer on AAO template.
TEM images of the Cu-Bi nanocables. (a) The middle segment of a cable. (b) The end segment of one cable. The scale bars are both . The SAED pattern and high resolution TEM image are taken from the dashed circle and rectangle marked in (a), respectively.
Bi-Cu nanocables with the same outer diameter of but different shell thicknesses and core diameters. The Bi shell thicknesses and Cu core diameters are 15 and (a), 20 and (b), and 25 and (c), respectively. The scale bars are all .
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