Formation of Ag-Au core-shell clusters in superfluid helium nanodroplets studied by atomic resolution electron tomography
P. Thaler
Institute of Experimental Physics, Graz University of Technology
09:20 - 09:40 Monday 28 September 2015 Hörsaal I, Alte Technik The past decades have seen an increasing interest in metal nanoparticles, and especially in core-shell systems which offer great prospects in many fields of nanophysics, ranging from nanoelectronics to catalysis.
We utilize superfluid helium droplets to grow Ag-Au core-shell nanoparticles and to deposit the resulting structures under soft-landing conditions. Using atomic resolution electron tomography, we can clarify the structure and composition of our particles on an atomic level. This detailed analysis shines light on the growth process of the nanoparticles and will allow deliberate tuning between single core and multi-core structures in future experiments.
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Institute of Solid State Physics
