Development of a diffuse air-argon plasma source using a dielectric-barrier discharge at atmospheric pressure

Journal Article · Mon Jan 21 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4788721· OSTI ID:22162684

Jie, Tang; Weiman, Jiang; Wei, Zhao; Yishan, Wang; Shibo, Li; Haojing, Wang ^[1]; Yixiang, Duan ^[1]

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1. State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710119 (China)

A stable diffuse large-volume air plasma source was developed by using argon-induced dielectric-barrier discharges at atmospheric pressure. This plasma source can be operated in a filamentary discharge with the average areal power density of 0.27 W/cm{sup 2} and the gas temperature of 315{+-}3 K. Spatial measurement of emission spectrum and temperature indicates that this plasma is uniform in the central region along the transverse direction. It is also found that the formation of diffuse air plasma mainly lies in the creation of sufficient seed electrons by the Penning effect through collisions between two argon or nitrogen metastables at low electric fields.

• OSTI ID: 22162684
• Journal Information: Applied Physics Letters, Vol. 102, Issue 3; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AIR
ARGON
ATMOSPHERIC PRESSURE
ELECTRIC FIELDS
ELECTRONS
EMISSION SPECTRA
PENNING DISCHARGES
PENNING EFFECT
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA INSTABILITY
POWER DENSITY