1999•Applied Physics LettersRequires access

Characteristics of a barrier discharge in monatomic and molecular gases

R. Sankaranarayanan, Bijan Pashaie, S.K. Dhali

Abstract

We show that, in a parallel-plate dielectric-barrier discharge, monatomic gases behave very differently from molecular gases. Time-resolved images show diffused discharge for monatomic gases and filamentary discharge for molecular gases. In addition, current waveforms also show a marked difference. An empirical relationship for power and voltage is derived which shows good agreement with experimental results for both monatomic and molecular gases.

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Key concepts: Monatomic ion, Monatomic gas, Atomic physics, Electric discharge in gases, Dielectric, Plasma, Chemistry, Dielectric barrier discharge