Generation of field-emitting surface dielectric barrier discharges in Ar and N2

Moriyuki Kanno,Sven Stauss,Tsuyohito Ito,Ryo Tanaka,Kazuo Terashima

doi:10.1063/1.5093960

Abstract

Field-emitting modes of surface dielectric barrier discharges (DBDs) have been generated thus far only in high-pressure CO2, including its liquid and supercritical phases, and in silicone oil. In this study, a generalized discussion with a one-dimensional Townsend-based theory is proposed to predict the accessibility of the field-emitting mode in various media. The field-emitting modes of surface DBDs are demonstrated experimentally in high-density Ar and N2 using Fowler–Nordheim coordinates and image observations.

Highlights

One of the important roles of discharge applications is to provide charges
To avoid electron-impact reactions with such energetic electrons, except in the generation of a vacuum, removing energy from electrons through momentum transfer collisions is an efficient method. Such field-emitting modes in surface dielectric barrier discharges (DBDs) can be achieved in high-pressure CO2, including its supercritical phases,11–13 and in silicone oil;14 these are termed as field-emitting surface dielectric barrier discharges (FESDBDs)
To examine the generality of the FESDBD observed in CO2 and silicone oil, accessibility was discussed for various media based on a one-dimensional Townsend-based theory

Summary

Introduction

One of the important roles of discharge applications is to provide charges. Charges are applied to separate toxic particles in the environment, manipulate particles, analyze materials, and remove electrostatic charges in manufacturing processes. In some applications, a high reactivity that is often a benefit provided by discharge plasma must be avoided. A high reactivity that is often a benefit provided by discharge plasma must be avoided. In such cases, discharges without breakdown, such as corona discharges, are often applied. To avoid electron-impact reactions with such energetic electrons, except in the generation of a vacuum, removing energy from electrons through momentum transfer collisions is an efficient method. Such field-emitting modes in surface dielectric barrier discharges (DBDs) can be achieved in high-pressure CO2, including its supercritical phases, and in silicone oil; these are termed as field-emitting surface dielectric barrier discharges (FESDBDs)

Methods

Results

Conclusion