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Title: Modification of a metal nanoparticle beam by a hollow electrode discharge

Treatment of nanoparticles (NPs) in complex environments, such as plasmas, is of interest for the fabrication of advanced nanomaterials with desired properties and also from a physical point of view. Here, the authors investigate the mutual interaction between silver NPs and a radio frequency (RF) plasma at different conditions by combining a cylindrical hollow electrode with a gas aggregation source. The investigation of the NP deposits and the morphology of the casted films shows that the applied RF discharge significantly changes the path of the NPs as well as the NP size distribution in the beam. Starting from a neutral NP beam, it is observed that most of the NPs leave the plasma region with negative charge(s), yet the fraction of positively charged NPs grows with power. Furthermore, the plasma characteristics are slightly influenced by the NP flux since the passing NPs collect the plasma charge carriers.
Authors:
; ; ; ;  [1] ; ;  [2]
  1. Institute for Materials Science–Multicomponent Materials, University of Kiel, 24143 Kiel (Germany)
  2. Institute of Experimental and Applied Physics, University of Kiel, 24098 Kiel (Germany)
Publication Date:
OSTI Identifier:
22489793
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films; Journal Volume: 34; Journal Issue: 2; Other Information: (c) 2015 American Vacuum Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE; ELECTRODES; NANOMATERIALS; NANOPARTICLES; PLASMA; RADIOWAVE RADIATION; SILVER