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P: Fachverband Plasmaphysik
P 6: Poster I
P 6.26: Poster
Montag, 26. Februar 2024, 16:30–18:30, ELP 6: Foyer
Plasma processing of Ag nanoparticles for resistive switching applications — •Arthur Fabritz1, Florian Ziegler2, Blessing Adejube2, Alexander Vahl2,3, Franz Faupel2,3, and Jan Benedikt1,3 — 1Institute of Experimental and Applied Physics, Kiel University — 2Institute of Materials Science, Kiel University — 3KiNSIS, Kiel University
Given their negative charge when inserted or formed in plasma, nanoparticles can be stored in the positive plasma potential and can be effectively modified inside a plasma, which allows for applications in various fields such as opto-electronics, sensors, or medicine. A large area of study are their electric characteristics, where especially their utilization in memristive devices is still largely unexplored. Memristic devices allow for the simulation of complex neuronal systems, and could therefore contribute to a vast improvement in the functionality of electrical components.
In this work, silver nanoparticles generated in a gas aggregation source are injected into low pressure plasma and coated with thin films (hydrocarbons, SiOx) to form core-shell nanoparticles. Injection of additional silver nanoparticles and extraction of the trapped particles onto non-conducting substrate can prepare mixed nanoparticle films with the density of uncoated particles on the percolation limit, the condition needed for the successful construction of a device with memristive properties. The experimental setup, in-situ diagnostics with UV-Vis absorption spectroscopy, nanoparticle extraction and measurements of their electrical properties will be discussed.
Keywords: core-shell-nanoparticles; electric percolation; VUV-Diagnostic