Fabrication of metal or alloy articles having microstructed and/or nanostructured features

Abstract

New and more cost-efficient methods and compositions are needed for the fabrication of three-dimensional nanostructures and/or microstructures from metals and alloys, including noble metals. In one aspect, a method of fabricating an article comprises selectively depositing a layer of copper oxide on a substrate and electrodepositing a noble metal layer onto the copper oxide layer from a solution comprising a salt of the noble metal and an electrolyte component comprising citrate, sulfite, or mixtures thereof. In being deposited onto the copper oxide layer, the noble metal layer is also selectively deposited relative to the substrate.

Dependencies are inferred from the claim text.