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Electrical characterisation of a double DBD in He at atmospheric pressure used for surface treatments

A. S. CHIPER1,* , A. NASTUTA1, G. RUSU1, G. POPA1

Affiliation

  1. Plasma Physics Department, Faculty of Physics, “Al. I. Cuza” University, Blvd. Carol I, No. 11, 700506 Iasi, Romania

Abstract

This study is focus on the double discharge formation and its properties with respect to the influence of various factors such as dielectric material and the parameters of the applied high voltage. A secondary discharge was induced at the end of a slow falling voltage flank, when a semi-sine uni-polar pulse voltage excites the DBD. The secondary discharge is always formed and its amplitude, as well as the amplitude of the main discharge depends on surface properties of the dielectric barrier and on the electrical parameters of the applied voltage. The most efficient treatment of a polymer sample in DBD plasma is made if the polymer is placed on the ground electrode. Moreover, the polymer site which is found towards the ground electrode is three times roughness than the other one..

Keywords

Atmospheric pressure glow discharge, Pulsed dielectric barrier discharge, Secondary discharge, Polymer surface treatment, AFM.

Submitted at: Feb. 15, 2005
Accepted at: Sept. 18, 2007

Citation

A. S. CHIPER, A. NASTUTA, G. RUSU, G. POPA, Electrical characterisation of a double DBD in He at atmospheric pressure used for surface treatments, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 9, pp. 2926-2931 (2007)