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Author Tang, Jie ♦ Jiang, Weiman ♦ Wang, Yishan ♦ Zhao, Wei ♦ Li, Jing ♦ Duan, Yixiang
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ AMBIPOLAR DIFFUSION ♦ ATMOSPHERIC PRESSURE ♦ CATHODES ♦ DIRECT CURRENT ♦ EFFICIENCY ♦ ELECTRICAL PROPERTIES ♦ ELECTRON DENSITY ♦ ENERGY CONSUMPTION ♦ GLOW DISCHARGES ♦ NITROGEN IONS ♦ PLASMA
Abstract A diffuse direct-current glow discharge was realized with low energy consumption and high energy utilization efficiency at atmospheric pressure. The formation of diffuse discharge was demonstrated by examining and comparing the electrical properties and optical emissions of plasmas. In combination with theoretical derivation and calculation, we draw guidelines that appearance of nitrogen ions at low electron density is crucial to enhance the ambipolar diffusion for the expansion of discharge channel and the increasing ambipolar diffusion near the cathode plays a key role in the onset of diffuse discharge. An individual-discharge-channel expansion model is proposed to explain the diffuse discharge formation.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-08-24
Publisher Place United States
Journal Applied Physics Letters
Volume Number 107
Issue Number 8


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