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Title: Model and particle-in-cell simulation of ion energy distribution in collisionless sheath

In this paper, we propose a self-consistent theoretical model, which is described by the ion energy distributions (IEDs) in collisionless sheaths, and the analytical results for different combined dc/radio frequency (rf) capacitive coupled plasma discharge cases, including sheath voltage errors analysis, are compared with the results of numerical simulations using a one-dimensional plane-parallel particle-in-cell (PIC) simulation. The IEDs in collisionless sheaths are performed on combination of dc/rf voltage sources electrodes discharge using argon as the process gas. The incident ions on the grounded electrode are separated, according to their different radio frequencies, and dc voltages on a separated electrode, the IEDs, and widths of energy in sheath and the plasma sheath thickness are discussed. The IEDs, the IED widths, and sheath voltages by the theoretical model are investigated and show good agreement with PIC simulations.
Authors:
 [1] ;  [2] ;  [2] ; ;  [1] ;  [2] ; ;  [1] ;  [2]
  1. School of Physics and Electronic Science, Guizhou Normal College, Guiyang 550018 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22410460
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ARGON; COLLISIONLESS PLASMA; COMPUTERIZED SIMULATION; ELECTRIC POTENTIAL; ELECTRODES; ENERGY SPECTRA; IONS; ONE-DIMENSIONAL CALCULATIONS; PLASMA SHEATH; RADIOWAVE RADIATION