Solid-state dewetting of metallic thin filmsThursday (29.09.2016) 12:30 - 12:45 Part of:
Thin films are characterized by their high surface-to-volume ratio which produces a large driving force for thermal agglomeration due to surface energy minimization. This phenomenon is known as dewetting and can occur well below the melting temperature of the layer material even in solid-state. In recent years, understanding the mechanisms of solid-state dewetting of thin (metal) films has become a broad field of research. As a useful side-effect, the dewetting is a promising method to fabricate various nanostructures with potential applications in ecology such as catalysis, or information technology such as sensory/memory devices [1-3]. Also photonic nanocrystals are focused on . Alloy nanostructures may unveil even new properties due to the combination of size and composition [5, 6]. The aim of the work presented here is to show alloying effects on the dewetting and how to use Ag-Au, Au-Ni, and Au-W bilayer thin films for the self-assembly of alloy nanoparticles.
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