title: Experimental investigation on large-area dielectric barrier discharge in atmospheric nitrogen and air assisted by the ultraviolet lamp.
abstract: In this paper, ultraviolet radiation produced by the ultraviolet lamp is employed to supply pre-ionization for the dielectric barrier discharge in N(2) or air at atmospheric pressure. The effect of the ultraviolet pre-ionization on improving the uniformity of the dielectric barrier discharge is investigated experimentally. The atmospheric pressure glow discharge of the large area (270 mm x 120 mm) is obtained successfully via the ultraviolet pre-ionization in atmospheric DBD in N(2) when the gas gap decrease to 3mm. Based on the emission spectra, the mechanism which ultraviolet pre-ionization improves the uniformity of the dielectric barrier discharge is discussed.
authors.affiliation: State Key Laboratory for Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian 116024, People's Republic of China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Biao
authors.initials: B
authors.lastname: Gu
authors.forename: Wenchun
authors.initials: W
authors.lastname: Wang
authors.forename: Dezhen
authors.initials: D
authors.lastname: Wang
authors.forename: Xuwen
authors.initials: X
authors.lastname: Peng
mesh_terms: D000388:Air; D001274:Atmospheric Pressure; D004560:Electricity; D004867:Equipment Design; D007477:Ions / Q000737:chemistry; D009584:Nitrogen / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D007477:Ions; D009584:Nitrogen