Generation of Atmospheric Pressure Plasma by Repetitive Nanosecond Pulses in Air Using Water Electrodes

Dielectric barrier discharge （DBD） excitated by pulsed power is a promising method for producing nonthermal plasma at atmospheric pressure. Discharge characteristic in a DBD with salt water as electrodes by a home-made unipolar nanosecond-pulse power source is presented in this paper. The generator...

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Bibliographic Details
Published inPlasma science & technology Vol. 13; no. 6; pp. 735 - 739
Main Author 邵涛 于洋 章程 姜慧 严萍 周远翔
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.12.2011
Subjects
DBD
介质阻挡放电
常压等离子体
水电极
空气等离子
纳秒
脉冲电源
非热等离子体
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ISSN1009-0630
DOI10.1088/1009-0630/13/6/19

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Summary:Dielectric barrier discharge （DBD） excitated by pulsed power is a promising method for producing nonthermal plasma at atmospheric pressure. Discharge characteristic in a DBD with salt water as electrodes by a home-made unipolar nanosecond-pulse power source is presented in this paper. The generator is capable of providing repetitive pulses with the voltage up to 30 kV and duration of 70 ns at a 300 Ω resistive load. Applied voltage and discharge current are measured under various experimental conditions. The DBD created between two liquid electrodes shows that the discharge is homogeneous and diffuse in the whole discharge regime, Spectra diagnosis is conducted by an optical emission spectroscopy. The air plasma has strong emission from nitrogen species below 400 nm, notably the nitrogen second positive system.
Bibliography:SHAO Tao , YU Yang , ZHANG Cheng, JIANG Hui , YAN Ping , ZHOU Yuanxiang （ 1.Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China; 2.Key Laboratory of Power Electronics and Electric Drive, Chinese Academy of Sciences, Beijing 100190, China; 3.State Key Laboratory of Control and Simulation of Power Systems and Generating Equipment, Electrical Engineering Department, Tsinghua University, Beijing 100084, China）
non-thermal plasma; dielectric barrier discharge; pulsed power; nanosecondpulse; pulse repetition frequency; atmospheric pressure air; emission spectra.
34-1187/TL
Dielectric barrier discharge （DBD） excitated by pulsed power is a promising method for producing nonthermal plasma at atmospheric pressure. Discharge characteristic in a DBD with salt water as electrodes by a home-made unipolar nanosecond-pulse power source is presented in this paper. The generator is capable of providing repetitive pulses with the voltage up to 30 kV and duration of 70 ns at a 300 Ω resistive load. Applied voltage and discharge current are measured under various experimental conditions. The DBD created between two liquid electrodes shows that the discharge is homogeneous and diffuse in the whole discharge regime, Spectra diagnosis is conducted by an optical emission spectroscopy. The air plasma has strong emission from nitrogen species below 400 nm, notably the nitrogen second positive system.
ISSN:1009-0630
DOI:10.1088/1009-0630/13/6/19