Epitaxially driven formation of intricate supported gold nanostructures on a lattice-matched oxide substrate.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 19842693.
- Also identified by DOI 10.1021/nl902491g.
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Abstract
A new class of gold nanostructures has been fabricated on the (100), (111), and (110) surfaces of lattice-matched MgAl(2)O(4) substrates. The nanostructures were fabricated through a synthesis route where a thin gold film dewets, liquefies, and then slowly self-assembles. The supported nanostructures are intricately shaped, crystalline, and epitaxially aligned. Simulations based on a continuum elastic theory indicate that the self-assembly is driven by strained epitaxy and minimization of the surface free energy.
Medical subject headings
- Aluminum Compounds
- Crystallization
- Gold
- Magnesium Compounds
- Nanostructures
- Nanotechnology