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ORIGINAL RESEARCH article

Front. Phys.
Sec. Low-Temperature Plasma Physics
Volume 12 - 2024 | doi: 10.3389/fphy.2024.1442177
This article is part of the Research Topic Electrical Breakdown and Discharge Plasma at Small Scales: Characteristics, Mechanisms, and Applications View all 6 articles

Evolutionary distribution and mode transition in medium frequency from 50 kHz to 5 MHz of argon atmospheric pressure dielectric barrier discharge plasma

Provisionally accepted
Zhibo ZHAO Zhibo ZHAO Yilin YU Yilin YU Qiuyue NIE Qiuyue NIE Zhonglin ZHANG Zhonglin ZHANG *
  • Harbin Institute of Technology, Harbin, China

The final, formatted version of the article will be published soon.

    Dielectric barrier discharges (DBDs) provide a promising technology of generating non-equilibrium cold plasmas in atmospheric pressure. For both application-focused and fundamental research, it is important to explore the discharge mode transition and electron heating mechanism to enable effective independent tuning of key plasma parameters in a DBD system. In this work, we report numerical studies of the effects of single-frequency excitation on atmospheric argon DBDs, which are carried out in the medium driving frequency (MF) range from 50 kHz to 5MHz by using a one-dimensional hydrodynamics coupling model. The spatio-temporal evolution of particle density associated with discharge mode transition and electron dynamics behaviour has been investigated. By tuning the different components of a single frequency, we observe the electron heating behaviors of the individual modes and the mode transitions from the Townsend discharge to the glow discharge in the low frequency to the Ω mode and the hybrid mode in the medium frequency to the α mode and the γ mode in the radio frequency. The physical analysis is understood based on these fundamental insights into the plasma physics.

    Keywords: Medium frequency, dielectric barrier discharge, Atmospheric pressure plasma, Mode transition, electron dynamics behaviour

    Received: 01 Jun 2024; Accepted: 31 Jul 2024.

    Copyright: © 2024 ZHAO, YU, NIE and ZHANG. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Zhonglin ZHANG, Harbin Institute of Technology, Harbin, China

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