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Production of N, H, and NH active species in N2-H2 dc flowing discharges

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Abstract

Densities of N, H, and NH active species have been detected by laser-induced fluorescence (LIF) in N2-xH2 dc flowing discharges. A peak value of N atom densities far x = 0.2–0.5% and a plateau value of H atom densities between x = 1% and 90% in post-discharge conditions (Δ∼0.05 sec, p = 2 torr) has been found. Comparison between LIF measurements of N atoms and the trend of the N2(B, v = II) population shows that the emission from this state can be used for monitoring N atoms. The NH radical has only been detected inside the discharge region.

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Authors and Affiliations

  1. Laboratoire de Physique des Gaz et des Plasmas, Université Paris XI, 91405, Orsay Cedex, France

    J. Amorim, G. Baravia & A. Ricard

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  1. J. Amorim
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  2. G. Baravia
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  3. A. Ricard
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On leave from Instituto Tecnológico de Aeronáutica, CNPq, Brazil.

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Amorim, J., Baravia, G. & Ricard, A. Production of N, H, and NH active species in N2-H2 dc flowing discharges. Plasma Chem Plasma Process 15, 721–731 (1995). https://doi.org/10.1007/BF01447069

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  • DOI: https://doi.org/10.1007/BF01447069

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