TY - JOUR

T1 - Study of Single Filament Dielectric Barrier Discharge in Argon

AU - Mahdavipour, Bahram

AU - Dahle, Sebastian

AU - Oberrath, Jens

N1 - Conference code: 71

PY - 2018

Y1 - 2018

N2 - Dielectric barrier discharges are devices, which were first invented to generate ozone. Today, they have a lot of applications such as surface modification, plasma-enhanced chemical vapor deposition, excitation of CO2 lasers and excimer lamps, plasma display panels, pollution control, as well as gas and air cleaning. At atmospheric pressure DBDs are typically filamentary, comprising a number of individual breakdown channels (micro discharges) with very short time duration of several nanoseconds. Most of the chemical effects of filamentary DBDs take place in their micro discharges. Due to that, this work focusses on the study of micro discharges at low temperature and atmospheric pressure conditions in argon to investigate its creation process. Therefore, a symmetric needle-to-needle geometry was designed, where both electrodes are covered by dielectric. A 2D simulation in COMSOL Multiphysics is presented to show the characteristics of the micro discharge. The overall discharge behavior can be validated by electrical measurements and optical emission spectroscopy, thus allowing to compare mean electron densities and energies.

AB - Dielectric barrier discharges are devices, which were first invented to generate ozone. Today, they have a lot of applications such as surface modification, plasma-enhanced chemical vapor deposition, excitation of CO2 lasers and excimer lamps, plasma display panels, pollution control, as well as gas and air cleaning. At atmospheric pressure DBDs are typically filamentary, comprising a number of individual breakdown channels (micro discharges) with very short time duration of several nanoseconds. Most of the chemical effects of filamentary DBDs take place in their micro discharges. Due to that, this work focusses on the study of micro discharges at low temperature and atmospheric pressure conditions in argon to investigate its creation process. Therefore, a symmetric needle-to-needle geometry was designed, where both electrodes are covered by dielectric. A 2D simulation in COMSOL Multiphysics is presented to show the characteristics of the micro discharge. The overall discharge behavior can be validated by electrical measurements and optical emission spectroscopy, thus allowing to compare mean electron densities and energies.

KW - Engineering

UR - http://meetings.aps.org/Meeting/GEC18/Session/LW1.18

M3 - Conference abstract in journal

VL - 2018

JO - Bulletin of the American Physical Society

JF - Bulletin of the American Physical Society

SN - 0003-0503

M1 - LW1.00018

T2 - 71st Annual Gaseous Electronics Conference

Y2 - 5 November 2018 through 9 November 2018

ER -