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US 2007/0178709 A1Published application
Method of forming nanowires with a narrow diameter distribution
AssigneeHewlett-Packard Development Company, L.P.
InventorTheodore Kamins
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Abstract
The growth of nanowires with a narrow diameter distribution is provided. The growth comprises: providing a substrate; providing a plurality of nanoparticles having a distribution of particle sizes on the substrate; initiating growth of nanowires by a vapor-liquid-solid technique; and terminating growth of the nanowires.
Claims40
A method of growing nanowires with a narrow diameter distribution, said method comprising:
- providing a substrate having a first surface;
- providing a plurality of nanoparticles having a distribution of particle sizes on said first surface;
- initiating growth of nanowires by a vapor-liquid-solid technique;
- and
- terminating growth of said nanowires.
2 more elements
A method of controlling a distribution of nanowire diameters resulting from growth of said nanowires, said method comprising:
- providing a substrate having a first surface;
- providing a plurality of nanoparticles having a narrow distribution of particle sizes below a critical diameter on said first surface;
- initiating growth of nanowires by a vapor-liquid-solid technique;
- and
- terminating growth of said nanowires.
2 more elements
A method of growing nanowires comprising:
- providing a substrate;
- forming nanoparticles with a distribution of sizes;
- heating said substrate and said nanoparticles in the presence of a gas containing a semiconductor;
- nucleating said nanowires on size-selected portions of the nanoparticle distribution;
- allowing said nanowires to continue to grow, with the length of said nanowires at any time depending on the diameter of said nanoparticles, wherein the longest nanowires have a diameter slightly below a critical diameter, with a sharp cut-off for larger diameters and a slow decrease for smaller diameters so that the distribution is skewed toward smaller diameters.
2 more elements
Dependencies are inferred from the claim text.