| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Optical Emission Analysis of Molecular Nitrogen by Using a Self-Resonating Dielectric Barrier Plasma Reactor |
| A. M. A. Amry1*,V. J. Law2,I. W. Boyd3 |
1Physics Department, Faculty of Science, Taif University, Taif 21974, Kingdom of Saudi Arabia
2Department of Electronic and Electrical Engineering, University College London WC1E 7JE, United Kingdom
3Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton, Vic 3168, Australia |
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| Cite this article: |
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A. M. A. Amry, V. J. Law, I. W. Boyd 2012 Chin. Phys. Lett. 29 055201 |
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Abstract We present a spectroscopic investigation of molecular nitrogen using a self-resonating co-axial dielectric barrier plasma reactor. The properties of the nitrogen plasma generated were recorded as functions of radio frequency (27.12 MHz), power (20–50 W) and gas pressure (0.1–60 mbar). The intensity distribution of the transitional structure of the electronic bands C3Πu →B 3Πg, B 2Σu+→X 2Σg+ and D 2Πg→A 2Πu was measured as a function of gas pressure. Relative energy efficiency (total emitted intensity from the plasma It divided by total electric power to the discharge P), as high as 14% can be obtained at a dissipated electrical power level of 20 W and a pressure of 10 mbar.
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Received: 03 February 2012
Published: 30 April 2012
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| PACS: |
52.20.Hv
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(Atomic, molecular, ion, and heavy-particle collisions)
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52.25.-b
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(Plasma properties)
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52.50.Dg
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(Plasma sources)
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