Gold Nanostructures In Diacetylene Monolayer Templates

摘要

Construction of controlled, organized nanostructure assemblies has been among the most challenging aspects of nanotechnology research and development. Diverse approaches for the design and fabrication of nanostructures on solid surfaces have been reported. Most strategies employ "top-down" lithography techniques, which are highly robust but exhibit shortcomings when attempted at smaller surface-length scales and for nonconventional configurations. "Bottom-up" self-assembly methods have attracted interest as alternatives to surface lithography. Promising self-assembly strategies have employed monolayers of amphiphilic substances for surface organization of metal nanoparticles (NPs) on water, but the reported approaches generally lack nanostructure organization. Here we demonstrate that diacetylene momomers that are isothermally compressed at the air/water interface can serve as templates for novel surface architectures of gold nanostructures. Specifically, we show that distinct patterns of alkylthiol-capped Au NPs can be formed within the diacetylene films. The surface patterns can be transferred from the water surface onto solid substrates and further annealed to remove the organic template, yielding organized Au patterns and pointing to the potential utilization of this approach for fabrication of surface nanostructures.