### Abstract

In modelling the plasma kinetics in dielectric barrier discharges (DBDs), the electron energy conservation equation is often included in the rate equation analysis (rather than utilizing the local-field approximation) with the assumption that the electron energy distribution function (EEDF) has a Maxwellian profile. We show that adopting a Maxwellian EEDF leads to a serious overestimate of the calculated ionization/excitation rate coefficients and the electron mobility for typical plasma conditions in a xenon DBD. Alternative EEDF profiles are trialed (Druyvesteyn, bi-Maxwellian and bi-Druyvesteyn) and benchmarked against EEDFs obtained from solving the steady-state Boltzmann equation. A bi-Druyvesteyn EEDF is shown to be more inherently accurate for modelling simulations of xenon DBDs.

Language | English |
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Pages | L99-L103 |

Number of pages | 5 |

Journal | Journal of Physics D: Applied Physics |

Volume | 33 |

Issue number | 19 |

DOIs | |

Publication status | Published - 7 Oct 2000 |

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**Electron energy distribution functions for modelling the plasma kinetics in dielectric barrier discharges.** / Carman, R. J.; Mildren, R. P.

Research output: Contribution to journal › Article › Research › peer-review

TY - JOUR

T1 - Electron energy distribution functions for modelling the plasma kinetics in dielectric barrier discharges

AU - Carman, R. J.

AU - Mildren, R. P.

PY - 2000/10/7

Y1 - 2000/10/7

N2 - In modelling the plasma kinetics in dielectric barrier discharges (DBDs), the electron energy conservation equation is often included in the rate equation analysis (rather than utilizing the local-field approximation) with the assumption that the electron energy distribution function (EEDF) has a Maxwellian profile. We show that adopting a Maxwellian EEDF leads to a serious overestimate of the calculated ionization/excitation rate coefficients and the electron mobility for typical plasma conditions in a xenon DBD. Alternative EEDF profiles are trialed (Druyvesteyn, bi-Maxwellian and bi-Druyvesteyn) and benchmarked against EEDFs obtained from solving the steady-state Boltzmann equation. A bi-Druyvesteyn EEDF is shown to be more inherently accurate for modelling simulations of xenon DBDs.

AB - In modelling the plasma kinetics in dielectric barrier discharges (DBDs), the electron energy conservation equation is often included in the rate equation analysis (rather than utilizing the local-field approximation) with the assumption that the electron energy distribution function (EEDF) has a Maxwellian profile. We show that adopting a Maxwellian EEDF leads to a serious overestimate of the calculated ionization/excitation rate coefficients and the electron mobility for typical plasma conditions in a xenon DBD. Alternative EEDF profiles are trialed (Druyvesteyn, bi-Maxwellian and bi-Druyvesteyn) and benchmarked against EEDFs obtained from solving the steady-state Boltzmann equation. A bi-Druyvesteyn EEDF is shown to be more inherently accurate for modelling simulations of xenon DBDs.

UR - http://www.scopus.com/inward/record.url?scp=0034301294&partnerID=8YFLogxK

U2 - 10.1088/0022-3727/33/19/101

DO - 10.1088/0022-3727/33/19/101

M3 - Article

VL - 33

SP - L99-L103

JO - Journal of Physics D: Applied Physics

T2 - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

SN - 0022-3727

IS - 19

ER -