Characterisation of volume and surface dielectric barrier discharges in N2-O2 mixtures using optical emission spectroscopy

被引：46

作者：

Kogelheide, Friederike ^{[1
]}

Offerhaus, Bjoern ^{[1
]}

Bibinov, Nikita ^{[1
]}

Krajinski, Philip ^{[1
]}

Schuecke, Lars ^{[1
]}

Schulze, Julian ^{[1
,2
]}

Stapelmann, Katharina ^{[3
]}

Awakowicz, Peter ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Inst Elect Engn & Plasma Technol, D-44780 Bochum, Germany

[2] West Virginia Univ, Dept Phys, Morgantown, WV 26506 USA

[3] North Carolina State Univ, Dept Nucl Engn, Raleigh, NC USA

来源：

PLASMA PROCESSES AND POLYMERS | 2020年 / 17卷 / 06期

关键词：

collisional-radiative model; controlled atmosphere; dielectric barrier discharge; optical emission spectroscopy; plasma parameters; ATMOSPHERIC-PRESSURE; ELECTRON COLLISIONS; NITROGEN-OXYGEN; CROSS-SECTIONS; PLASMA; RECOMBINATION; N-2(C-3-PI(U); DEACTIVATION; PHYSICS; O-2;

D O I：

10.1002/ppap.201900126

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A volume and a twin surface dielectric barrier discharge (VDBD and SDBD) are generated in different nitrogen-oxygen mixtures at atmospheric pressure by applying damped sinusoidal voltage waveforms with oscillation periods in the microsecond time scale. Both electrode configurations are located inside vacuum vessels and operated in a controlled atmosphere to exclude the influence of surrounding air. The discharges are characterised with different spatial and temporal resolution by applying absolutely calibrated optical emission spectroscopy in conjunction with numerical simulations and current-voltage measurements. Plasma parameters, namely the electron density and the reduced electric field, and the dissipated power are found to depend strongly on the oxygen content in the working gas mixture. Different spatial and temporal distributions of plasma parameters and dissipated power are explained by surface and residual volume charges for different O-2 admixtures due to their effects on the electron recombination rate. Thus, the oxygen admixture is found to strongly influence the breakdown process and plasma conditions of a VDBD and a SDBD.

引用

页数：18

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