A coplanar-volume coupled discharge based on pre-ionization: Physical and chemical properties DOI
Bangfa Peng,

Ruizhi Wang,

Jie Li

et al.

Applied Physics Letters, Journal Year: 2024, Volume and Issue: 125(14)

Published: Sept. 30, 2024

A coplanar-volume coupled discharge utilizing a capillary coplanar dielectric barrier (CDBD) as pre-ionization source and employing negative direct current (DC) voltage to prompt plasma propagation from the surface air gap is proposed experimentally investigated. Optical-electrical properties, spatial-temporal evolution of plasma, active species generation are systematically studied provide in-depth insights into characteristics based on pre-ionization. Compared traditional discharge, this approach reduces inception significantly enhances intensity. Spatial-temporal morphology demonstrates two distinct processes occurring in discharge: primary secondary discharge. These developed CDBD, respectively. Through analyzing effects pulse DC physical chemical properties high exhibits strong luminous intensity, elevated energy, heightened activity.

Language: Английский

A planar plume array emanating from an atmospheric pressure argon plasma jet employing floating electrodes DOI
Kaiyue Wu, Mo Chen, Junxia Ran

et al.

Physics of Plasmas, Journal Year: 2024, Volume and Issue: 31(9)

Published: Sept. 1, 2024

Large-scale plasma plumes downstream of jets are in urgent need from a practical viewpoint. In this Letter, an argon jet with floating electrodes is proposed to produce large-scale planar plume array. Results indicate that increasing peak voltage (Vp), the array elongates gradually and scales up lateral direction optimal value 90.0 mm. There only one discharge pulse per half cycle, whose intensity duration increase Vp. Moreover, there time lag between initiations individual plumes. Fast photography reveals originates repeated process some micro-discharge filaments stretching along stream. By optical emission spectroscopy, spatial distribution parameters obtained, such as electron density, temperature, gas temperature. At last, employed test surface modification polyethylene terephthalate, for which uniform has been realized scan velocity 1.0 cm/min. These results great significance development atmospheric pressure sources.

Language: Английский

Citations

0
A coplanar-volume coupled discharge based on pre-ionization: Physical and chemical properties DOI
Bangfa Peng,

Ruizhi Wang,

Jie Li

et al.

Applied Physics Letters, Journal Year: 2024, Volume and Issue: 125(14)

Published: Sept. 30, 2024

A coplanar-volume coupled discharge utilizing a capillary coplanar dielectric barrier (CDBD) as pre-ionization source and employing negative direct current (DC) voltage to prompt plasma propagation from the surface air gap is proposed experimentally investigated. Optical-electrical properties, spatial-temporal evolution of plasma, active species generation are systematically studied provide in-depth insights into characteristics based on pre-ionization. Compared traditional discharge, this approach reduces inception significantly enhances intensity. Spatial-temporal morphology demonstrates two distinct processes occurring in discharge: primary secondary discharge. These developed CDBD, respectively. Through analyzing effects pulse DC physical chemical properties high exhibits strong luminous intensity, elevated energy, heightened activity.

Language: Английский

Citations

0