Metal oxide nanorods
AssigneePresident and Fellows of Harvard College
InventorsCharles M. Lieber, Peidong Yang
Life of this patent
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Abstract
Metal oxide nanorods and composite materials containing such nanorods. The metal oxide nanorods have diameters between 1 and 200 nm and aspect ratios between 5 and 2000.
Claims26
A composite comprising a substrate and a metal oxide nanorod consisting essentially of a metal oxide comprising a metal selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, rhenium, iron, osmium, cobalt, nickel, copper, zinc, cadmium, scandium, yttrium, lanthanum, a lanthanide series element, boron, gallium, indium, thallium, germanium, tin, lead, magnesium, calcium, strontium, and barium, or said metal oxide is Al.sub.2 O.sub.3 ;
- wherein said metal oxide nanorod has a narrow dimension between 1 and 100 nanometers, and an aspect ratio between 5 and 2000, wherein the metal oxide nanorod is a single crystal, and said metal oxide nanorod is on the substrate and is aligned perpendicular to a surface of the substrate.
A composite comprising a substrate and a metal oxide nanorod comprising magnesium oxide wherein said metal oxide nanorod is a single crystal and has a narrow dimension between 1 and 100 nanometers, and an aspect ratio between 5 and 2000, and the metal oxide nanorod is on the substrate and is aligned perpendicular to a surface of the substrate.
A composite comprising a substrate and a metal oxide nanorod consisting essentially of a metal oxide made of the elements M.sup.1, M.sup.2, and oxygen, wherein M.sup.1 is a metal selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, rhenium, iron, osmium, cobalt, nickel, copper, zinc, cadmium, scandium, yttrium, lanthanum, a lanthanide series element, boron, aluminum, gallium, indium, thallium, silicon, germanium, tin, lead, magnesium, calcium, strontium, and barium, and M.sup.2 is a metal selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, rhenium, osmium, cobalt, nickel, zinc, cadmium, scandium, yttrium, lanthanum, a lanthanide series element, boron, gallium, indium, thallium, germanium, tin, lead, magnesium, calcium, strontium, and barium;
- wherein said metal oxide nanorod is a single crystal and has a narrow dimension between 1 and 100 nanometers and an aspect ratio between 5 and 2000, and said metal oxide nanorod is on the substrate and is aligned perpendicular to a surface of the substrate.
A nanorod composite comprising a metal oxide nanorod contained in a surrounding matrix material, wherein
- said metal oxide nanorod consists essentially of a single crystal of a metal oxide, said metal oxide comprising a metal selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, rhenium, iron, osmium, cobalt, nickel, copper, zinc, cadmium, scandium, yttrium, lanthanum, a lanthanide series element, boron, aluminum, gallium, indium, thallium, germanium, tin, lead, magnesium, calcium, strontium, and barium;
- said metal oxide nanorod having a narrow dimension between 1 and 200 nanometers and an aspect ratio between 5 and 2000;
- and
- said matrix material includes a superconductor.
A nanorod composite comprising a metal oxide nanorod contained in a surrounding superconductor matrix material, wherein said metal oxide nanorod consists essentially of a single crystal of a metal oxide and said metal oxide comprises a metal selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, rhenium, iron, osmium, cobalt, nickel, copper, zinc, cadmium, scandium, yttrium, lanthanum, a lanthanide series element, boron, aluminum, gallium, indium, thallium, silicon, germanium, tin, lead, magnesium, calcium, strontium, and barium, said metal oxide nanorod having a narrow dimension between 1 and 200 nanometers and an aspect ratio between 5 and 2000.
Dependencies are inferred from the claim text.