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US 6,187,165 B1Granted
Arrays of semi-metallic bismuth nanowires and fabrication techniques therefor
AssigneeThe John Hopkins University
InventorsChia-Ling Chien, Peter C. Searson, Kai Liu
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Abstract
Novel arrays of nanowires made of semi-metallic Bismuth (Bi) is disclosed made by unique electrodeposition techniques. Because of the unusual electronic properties of the semi-metallic Bi and the nanowire geometry, strong finite size effects in transport properties are achieved. In addition, very large positive magnetoresistance, 300% at low temperatures and 70% at room temperature, with quasilinear field dependence have been attained.
Claims9
A method of fabricating semi-metallic bismuth nanowires, the method comprising the steps of:
- supplying an insulating membrane as a template for the bismuth nanowires;
- coating a first layer of metal onto a first side of the membrane as an electrode;
- confining a semi-metallic bismuth-based electrolyte to a second side of the coated membrane;
- buffering the deposition solution;
- and
- applying a voltage potential to the deposition solution.
3 more elements
Dependencies are inferred from the claim text.