We developed a GlobalModel for N2O plasmas valid for applications in various power, gas flow rate, and pressure regimes. Besides\nenergy losses from electron collisions with N2O, it takes into consideration those due to molecular N2 and O2 and to atomic N and\nO species. Positive atomic N+ and O+ and molecular N2O+, N2\n+, andO2\n+ have been treated as separate species and also negative\nO? ions.The latter confer an electronegative character to the discharge, calling for modified plasma sheath and plasma potential\nformulas. Electron density and temperature and all species densities have been evaluated, hence the ionization and dissociation\npercentages of N2O, N2, and O2 molecules and the plasma electronegativity.The model is extended to deal with N2/O2 mixtures\nfeedings, notably with air. Rate coefficients andmodel results are discussed and compared with those fromavailable theoretical and\nexperimental work on ICP and glow discharge devices.
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