Large-volume and low-frequency atmospheric glow discharges without dielectric barrier

Shi, J. J.; Kong, M. G.
February 2005
Applied Physics Letters;2/28/2005, Vol. 86 Issue 9, p091502
Academic Journal
It is widely believed that, at low frequencies of 1–100 kHz, the generation of atmospheric pressure glow discharges (APGD) requires a dielectric barrier added to at least one electrode. This letter reports the experimental observation of a uniform and stable APGD generated between two bare electrodes without a dielectric barrier over a wide frequency range from 20 kHz to 260 kHz. Below 70 kHz, it is shown that preionization in the rising phase of the applied voltage is important and plasma generation occurs in the voltage-falling phase. Mechanism of barrier-free APGD is found to be different from both atmospheric dielectric-barrier discharges and radio-frequency APGD.


Related Articles

  • Discharge characteristics of atmospheric-pressure radio-frequency glow discharges with argon/nitrogen. Hua-Bo Wang; Wen-Ting Sun; He-Ping Li; Cheng-Yu Bao; Xing Gao; Hui-Ying Luo // Applied Physics Letters;10/16/2006, Vol. 89 Issue 16, p161504 

    In this letter, atmospheric-pressure glow discharges in γ mode with argon/nitrogen as the plasma-forming gas using water-cooled, bare copper electrodes driven by radio-frequency power supply at 13.56 MHz are achieved. The preliminary studies on the discharge characteristics show that, induced...

  • Radio-Frequency, Atmospheric-Pressure Glow Discharges: Producing Methods, Characteristics and Applications in Bio-Medical Fields. He-Ping Li; Guo Li; Wen-Ting Sun; Sen Wang; Cheng-Yu Bao; Liyan Wang; Ziliang Huang; Nan Ding; Hongxin Zhao; Xin-Hui Xing // AIP Conference Proceedings;2/21/2008, Vol. 982 Issue 1, p584 

    Radio-frequency (RF), atmospheric-pressure glow discharge (APGD) plasmas with bare metallic electrodes have shown their promising prospects in different fields. In this paper, based on the induced gas discharge approach, the discharge characteristics of RF, APGD plasmas using helium/oxygen...

  • Shortwave krypton-bromine excimer low-pressure lamp. Shuaibov, A. K.; Grabovaya, I. A. // Technical Physics Letters;Dec2006, Vol. 32 Issue 12, p1036 

    The emission characteristics are reported for a small short-wavelength (UV) lamp filled with a krypton-bromine mixture and pumped by longitudinal glow discharge at a 100-mm distance between electrodes in a quartz tube with an internal diameter of 14 mm. The emission spectrum is formed by the...

  • Alternating nonsteady gas-discharge modes in an atmospheric-pressure air flow blown through a point-plane gap. Akishev, Yu. S.; Aponin, G. I.; Grushin, M. E.; Karal'nik, V. B.; Pan'kin, M. V.; Petryakov, A. V.; Trushkin, N. I. // Plasma Physics Reports;Apr2008, Vol. 34 Issue 4, p312 

    The electric and spectral characteristics of a nonsteady discharge in an atmospheric air flow blown through a point-plane interelectrode gap were investigated experimentally. The discharge was produced by applying a constant positive voltage to the point electrode, the amplitude of the applied...

  • Three modes in a radio frequency atmospheric pressure glow discharge. Shi, J. J.; Deng, X. T.; Hall, R.; Punnett, J. D.; Kong, M. G. // Journal of Applied Physics;11/15/2003, Vol. 94 Issue 10, p6303 

    Fundamentally not requiring a vacuum chamber, atmospheric pressure glow discharges (APGDs) offer an exciting prospect for a wide range of material processing applications. To characterize their operation and establish their operation range, a radio frequency (rf) APGD is studied experimentally...

  • α, γ, and normal, abnormal glow discharge modes in radio-frequency capacitively coupled discharges at atmospheric pressure. Se Youn Moon; Rhee, J. K.; Kim, D. B.; Choe, W. // Physics of Plasmas;Mar2006, Vol. 13 Issue 3, p033502 

    Discharge modes, α and γ, of a radio-frequency helium capacitively coupled discharge at atmospheric pressure were investigated with the discharge gap distance between electrodes varied from 1 to 5 mm. As similarly observed in other experiments, the α and γ mode and the...

  • Formation of large-volume, high-pressure plasmas in microhollow cathode discharges. Park, Hae Il; Lee, Tae Il; Park, Ki Wan; Baik, Hong Koo; Lee, Se-Jong; Song, Kie Moon // Applied Physics Letters;5/12/2003, Vol. 82 Issue 19, p3191 

    We have developed two electrode configurations that employ one primary supply circuit with a variable resistor for large-volume, high-pressure glow discharges without glow-to-arc transitions, and have investigated their electrical and the photoimages in microhollow cathode sustained discharges....

  • Radio frequency atmospheric pressure glow discharge in α and γ modes between two coaxial electrodes. Wanli Shang; Dezhen Wang; Yuantao Zhang // Physics of Plasmas;Sep2008, Vol. 15 Issue 9, p093503 

    The discharge in pure helium and the influence of small nitrogen impurities at atmospheric pressure are investigated based on a one-dimensional self-consistent fluid model controlled by a dielectric barrier between two coaxial electrodes. The simulation of the radiofrequency (rf) discharge is...

  • An experimental study on discharge mechanism of pulsed atmospheric pressure glow discharges. Huang, Xiaojiang; Sun, Liqun; Bao, Yun; Zhang, Jing; Shi, J. J. // Physics of Plasmas;Mar2011, Vol. 18 Issue 3, p033503 

    The discharge mechanism of pulsed atmospheric pressure glow discharges excited by the unipolar positive voltage pulses between two parallel plate electrodes with or without one dielectric barrier on the ground electrode in flowing helium has been characterized by nanosecond time resolved optical...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics