›› 2014, Vol. 23 ›› Issue (9): 95202-095202.doi: 10.1088/1674-1056/23/9/095202

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Characteristics of a large gap uniform discharge excited by DC voltage at atmospheric pressure

李雪辰a b, 鲍文婷a, 贾鹏英b, 赵欢欢a, 狄聪a, 陈俊英b   

  1. a College of Physics Science & Technology, Hebei University, Baoding 071002, China;
    b Key Laboratory of Photo-Electronics Information Materials of Hebei Province, Baoding 071002, China
  • 收稿日期:2014-01-16 修回日期:2014-03-10 出版日期:2014-09-15 发布日期:2014-09-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10805013 and 51077035), the Funds for Distinguished Young Scientists of Hebei Province of China (Grant No. A2012201045), the Natural Science Foundation of Hebei Province of China (Grant No. A2011201132), the Department of Education for Outstanding Youth Project of China (Grant No. Y2011120), the Funds for Distinguished Young Scientists of Hebei University of China (Grant No. 2010J02), the Doctor Program of Hebei University of China (Grant No. 2012-241), and the Youth Project of Hebei University of China (Grant No. 2011Q14).

Characteristics of a large gap uniform discharge excited by DC voltage at atmospheric pressure

Li Xue-Chen (李雪辰)a b, Bao Wen-Ting (鲍文婷)a, Jia Peng-Ying (贾鹏英)b, Zhao Huan-Huan (赵欢欢)a, Di Cong (狄聪)a, Chen Jun-Ying (陈俊英)b   

  1. a College of Physics Science & Technology, Hebei University, Baoding 071002, China;
    b Key Laboratory of Photo-Electronics Information Materials of Hebei Province, Baoding 071002, China
  • Received:2014-01-16 Revised:2014-03-10 Online:2014-09-15 Published:2014-09-15
  • Contact: Li Xue-Chen E-mail:wangny@bnu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10805013 and 51077035), the Funds for Distinguished Young Scientists of Hebei Province of China (Grant No. A2012201045), the Natural Science Foundation of Hebei Province of China (Grant No. A2011201132), the Department of Education for Outstanding Youth Project of China (Grant No. Y2011120), the Funds for Distinguished Young Scientists of Hebei University of China (Grant No. 2010J02), the Doctor Program of Hebei University of China (Grant No. 2012-241), and the Youth Project of Hebei University of China (Grant No. 2011Q14).

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摘要： A large-gap uniform discharge is ignited by a coaxial dielectric barrier discharge and burns between a needle anode and a plate cathode under a low sustaining voltage by feeding with flowing argon. The basic aspects of the large-gap uniform discharge are investigated by optical and spectroscopic methods. From the discharge images, it can be found that this discharge has similar regions with glow discharge at low pressure except a plasma plume region. Light emission signals from the discharge indicate that the plasma column is invariant with time, while there are some stochastic pulses in the plasma plume region. The optical emission spectra scanning from 300 nm to 800 nm are used to calculate the excited electron temperature and vibrational temperature of the large-gap uniform discharge. It has been found that the excited electron temperature almost keeps constant and the vibrational temperature increases with increasing discharge current. Both of them decreases with increasing gas flow rate.

关键词: large-gap uniform discharge, plasma plume, plasma column, optical emission spectrum

Abstract: A large-gap uniform discharge is ignited by a coaxial dielectric barrier discharge and burns between a needle anode and a plate cathode under a low sustaining voltage by feeding with flowing argon. The basic aspects of the large-gap uniform discharge are investigated by optical and spectroscopic methods. From the discharge images, it can be found that this discharge has similar regions with glow discharge at low pressure except a plasma plume region. Light emission signals from the discharge indicate that the plasma column is invariant with time, while there are some stochastic pulses in the plasma plume region. The optical emission spectra scanning from 300 nm to 800 nm are used to calculate the excited electron temperature and vibrational temperature of the large-gap uniform discharge. It has been found that the excited electron temperature almost keeps constant and the vibrational temperature increases with increasing discharge current. Both of them decreases with increasing gas flow rate.

Key words: large-gap uniform discharge, plasma plume, plasma column, optical emission spectrum

中图分类号:  (Optical (ultraviolet, visible, infrared) measurements)

  • 52.70.Kz
52.80.Hc (Glow; corona)