Sheath evolution in electronegative plasma
The transport of electrons and ions to metal substrates in low-temperature three-component plasma is studied by computer simulation techniques in a one-dimensional approximation for planar and spherical geometries. The modeled O-2/Ar plasma consists of positive argon and oxygen ions, negative oxygen ions and electrons in various proportions. The spatial and temporal evolution of the distributions of individual species as well as the dynamics of the electric potential distribution in the boundary layer between plasma and substrates is investigated. Further results concern fluxes of charged species to substrates during the swap of voltage bias. (C) 2002 Elsevier Science B.V. All rights reserved.
electronegative plasma dc glow discharge pic-mc modeling sheath dynamics