Notice of RetractionResearch of OH and N2+ spectra in a needle-plate pulsed streamer discharge

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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In this study, the spatial distributions of the emission intensity of OH (A²Σ → X²Π, 0-0) and N₂⁺ (B²Σ_u⁺ → X²Σ_g⁺, 0-0, 391.4 nm) are investigated in the atmospheric pressure pulsed streamer discharge of H₂O and N₂ mixture in a needle-plate reactor configuration. The effects of O₂ flow rate on the spatial distributions of the emission intensity of OH (A²Σ → X²Π, 0-0), N₂⁺ (B²S_u⁺ → X²Σ_g⁺, 0-0, 391.4 nm), and the vibrational temperature of N₂ (C) in the lengthwise direction from needle to plate are attained. It is found that the emission intensities of OH (A²Σ → X²Π, 0-0) and N₂⁺ (B²Σ_u⁺ → X²Σ_g⁺, 0-0, 391.4 nm) decrease with increasing O2 flow rate. In the direction from needle to plate, the emission intensity of OH (A²Σ → X²Π, 0-0) decreases firstly, and rises near the plate electrode, while the emission intensity of N₂⁺ (B²Σ_u⁺ → X²Σ_g⁺, 0-0, 391.4 nm) is nearly- constant along the needle to plate direction firstly, and rises sharply near the plate electrode. The main physicochemical processes involved are discussed.