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Title: Optical diagnostic and electrical analysis in dusty RF discharges containing plasmoids

The presence of hydrogenated carbon nitride a-CN{sub x}:H particles confined in an argon dusty discharge induces the appearance of instabilities. Those instabilities, also called plasmoids, are luminous regions which move through the plasma and rotate around the biased electrode circumference. Electrical characteristics of the plasma have been used to evidence the presence of dust particles and to demonstrate that plasmoid appearance is triggered by particles. The light emitted by the plasma is analysed by optical emission spectroscopy. This paper presents the spatial distribution of excited species, such as CN, Ar I… between electrodes both inside plasmoids and in the surrounding dusty plasma. Obtained results allow to get information for the electron energy distribution function. Moreover, the interplay between plasmoid behaviour and particle presence in the plasma is shown.
Authors:
; ;  [1] ;  [2]
  1. GREMI, Groupe de Recherche sur l'Energétique des Milieux Ionisés, UMR 7344 CNRS/Université d'Orléans, Site de l'IUT de Bourges, 63 avenue de Lattre de Tassigny, 18020 Bourges Cedex (France)
  2. IUT de Bourges, Département Mesures Physiques, 63 avenue de Lattre de Tassigny, 18020 Bourges Cedex (France)
Publication Date:
OSTI Identifier:
22492845
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 16; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ARGON; CARBON NITRIDES; CYANIDES; ELECTRODES; EMISSION SPECTROSCOPY; ENERGY SPECTRA; HYDROGENATION; INSTABILITY; PARTICLES; PLASMA; PLASMOIDS; SPATIAL DISTRIBUTION