Spectroscopic Study of a Radio-Frequency Atmospheric Pressure Dielectric Barrier Discharge with Anodic Alumina as the Dielectric

H. I. A. QAZI; M. SHARIF; S. HUSSAIN; M. A. BADAR; H. AFZAL

doi:10.1088/1009-0630/15/9/13

Plasma Science and Technology > 2013 > 15(9): 900-903. > DOI: 10.1088/1009-0630/15/9/13

H. I. A. QAZI, M. SHARIF, S. HUSSAIN, M. A. BADAR, H. AFZAL. Spectroscopic Study of a Radio-Frequency Atmospheric Pressure Dielectric Barrier Discharge with Anodic Alumina as the Dielectric[J]. Plasma Science and Technology, 2013, 15(9): 900-903. DOI: 10.1088/1009-0630/15/9/13

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Spectroscopic Study of a Radio-Frequency Atmospheric Pressure Dielectric Barrier Discharge with Anodic Alumina as the Dielectric

1 Department of Physics, University of Sargodha, Sargodha 40100, Pakistan 2 Department of Physics, GC University, Faisalabad 38000, Pakistan

Funds: supported partially by the Higher Education Commission Project No.794 and Project No.1852 of Pakistan

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Received Date: March 19, 2012

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Abstract

Abstract

This paper presents the fabrication and a spectroscopic study of a stable radio- frequency dielectric barrier discharge (RF DBD) in Ar with a novel dielectric, anodic alumina, at atmospheric pressure. Dielectric electrodes are fabricated from commercially available low cost impure aluminum strips by a two-step anodization process in 0.3 M solution of oxalic acid. The discharge is found to be stable with excellent spatial uniformity for the RF input power range of 30∼80 W. Excitation and rotational temperatures measured in the experiment range of 1472∼3255 K and 434∼484 K, respectively, as the input power changes from 30 W to 80 W. These temperature ranges are suitable for surface modification applications.

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