Influence of bias voltage and oxygen addition on the discharge aspects of a diffuse argon plume in an atmospheric pressure plasma jet

扫码查看

原文链接

万方数据
维普

外文摘要：A remote plasma,also referred to as a plasma plume(diffuse or filamentary),is normally formed downstream of an atmospheric pressure plasma jet.In this study,a diffuse plume is formed by increasing the bias voltage(Ub)applied to the downstream electrode of an argon plasma jet excited by a negatively pulsed voltage.The results indicate that the plume is filamentary when Ub is low,which transits to the diffuse plume with increasing Ub.The discharge initiated at the rising edge of the pulsed voltage is attributed to the diffuse plume,while that at the falling edge contributes to the filament in the plume.For the diffuse plume,the discharge intensity decreases with the increasing oxygen content(Co).Fast photography reveals that the diffuse plume results from a negative streamer,which has a dark region near the nozzle with Co=0％.However,the dark region is absent with Co=0.5％.From the optical emission spectrum,the electron density,electron excitation temperature,gas temperature,and oxygen atom concentration are investigated.

外文关键词：

atmospheric pressure plasma jetdiffuse plasma plumeoptical emission spectrum

作者：

贾鹏英、韩国新、董秀品、吴凯玥、冉俊霞、庞学霞、张雪雪、武珈存、李雪辰

展开 >

作者单位：

College of Physics Science and Technology,Hebei University,Baoding 071002,People's Republic of China

Engineering Research Center of Zero-carbon Energy Buildings and Measurement Techniques,Ministry of Education,Baoding 071002,People's Republic of China

Department of Electrical Engineering,Tsinghua University,Beijing 100084,People's Republic of China

Hebei Key Laboratory of Photo-Electricity Information and Materials,Hebei University,Baoding 071002,People's Republic of China

展开 >

出版年：

2024

DOI：

10.1088/2058-6272/ad73ab

等离子体科学和技术(英文版)

中国科学院合肥物质科学研究所中国力学学会

等离子体科学和技术(英文版)

影响因子：0.297

ISSN：1009-0630

年,卷(期)：2024.26(12)