Berlin 2005 – scientific programme
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A: Atomphysik
A 13: Poster HU 2
A 13.25: Poster
Tuesday, March 8, 2005, 08:30–18:30, Poster HU
Generation of Intense Mass-Separated Nanoparticle Beams — •Johannes Passig1, Ralf Methling2, Josef Tiggesbäumker1, and Karl-Heinz Meiwes-Broer1 — 1Institut für Physik, Universität Rostock, Germany, Universitätsplatz 3, 18051 Rostock — 2Institut für Niedertemperatur-Plasmaphysik e.V., Germany, Friedrich-Ludwig-Jahn-Str. 19, 17489 Greifswald
The increasing interest in metallic nanoparticles demands development of novel particle-generating techniques. Especially for the deposition of nanoparticles on surfaces and for experiments investigating the interactions between free clusters and light, narrow beams with a high intensity are required.
The continously working arc cluster ion source ACIS has been advanced to produce intense beams of metal-clusters with a broad size-distribution from about 1 nm up to 20 nm. For the first time aerodynamic lenses were applied to collimate the particle-beam of metal clusters. Mass separation was accomplished by an electrostatic quadrupole filter. The influences of gas composition and aerodynamic devices on the particle-beam has been evaluated by energy- and time-of-flight-measurements. Furthermore, the deposition of clusters with in-situ controlled masses was attempted.