In: Electrical Engineering
Which synthesis method will not work for growing metal nanowires. (You can use a process of elimination to figure this out)
Catalyst based growth: Involves the use of a metal to facilitate the decomposition of a gas containing the constituent element(s), concentration of those elements in the molten catalyst and precipitation out as a nanowire. |
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Anisotropic growth: Most materials have different growth rates on different crystal faces. This can be exploited to create nanowires by way of optimizing conditions to cause a nanoparticle to grow more along one axis compared to the other directions. |
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Nanopore template growth: Electroplating within the confines of a cylindrical pore in a polymer or alumina film having a diameter in the nm range. The electroplated metal takes on the shape of the pore as it fills it. Dissolution of the film releases the nanowires. |
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Liftoff using standard VLSI techniques: Similar to the template method for growing, this process uses a sacrificial layer to define the geometry of material deposited onto a substrate. One key difference is that this method allows for nanowires that are parallel to the surface to be made. |