Article ID Journal Published Year Pages File Type
1665783 Thin Solid Films 2013 6 Pages PDF
Abstract

•Ag/Au alloys are produced by annealing by laser interference metallurgy.•Line patterns are obtained after laser treatment.•Patterned nanoporous gold is obtained by chemical de-alloying.

Micrometric periodical gold/silver alloy linear patterns have been prepared by thermal annealing of bilayer thin films (gold/silver) by means of laser interference metallurgy. These alloyed lines alternate with non-alloyed gold/silver thin films. A chemical attack with a nitric acid solution produces the dealloying of the annealed patterns (by preferential removal of the less noble material), and thus, the linear patterns acquire a nanoporous structure. These nanostructured lines alternate with gold thin films produced after the elimination of the silver thin film in the non-alloyed areas.

Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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