Method of making a substrate structure with enhanced surface area
OwnerSungsoo Yiinventor
Life of this patent
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Abstract
A substrate having a surface is provided; first nanoparticles are deposited on the surface of the substrate; first nanowires are grown extending from the first nanoparticles to the surface of the substrate; second nanoparticles are deposited on the first nanowires; and second nanowires are grown extending from the second nanoparticles to the first nanowires to form branched nanostructures. Each nanowire growth process provides a geometric increase in the surface area of the substrate structure. Additional nanoparticles may be subsequently deposited and additional nanowires may be grown from the additional nanoparticles to provide a further increase in the surface area of the substrate structure.
Claims21
A method of making a substrate structure, the method comprising:
- providing a substrate having a surface;
- depositing first nanoparticles on the surface of the substrate;
- growing first nanowires extending from the first nanoparticles to the surface of the substrate;
- depositing second nanoparticles on the first nanowires;
- and
- growing second nanowires extending from the second nanoparticles to the first nanowires to form branched nanostructures.
A substrate structure, comprising:
- a substrate having a substrate surface;
- and
- branched nanostructures extending from the substrate surface, ones of the branched nanostructures having at least two levels of branching.
The substrate structure of claim 17, additionally comprising an electromagnetic field enhancing layer covering the branched nanostructures and the substrate surface.
A method of making a substrate structure having an enhanced surface area, the method comprising:
- providing a substrate having a substrate surface;
- depositing nanoparticles on the substrate surface;
- growing nanowires extending from the nanoparticles;
- and
- repeating the depositing and the growing until branched nanostructures formed by the growing have a predetermined level of branching, the depositing comprising additionally depositing nanoparticles on the nanowires.
The method of claim 20, additionally comprising oxidizing the branched nanostructures.
Dependencies are inferred from the claim text.