Dielectric barrier discharges revisited: the case for mobile surface charge

Abstract

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Plasma-catalyst interaction studied in a single pellet DBD reactor: dielectric constant effect on plasma dynamics

“…The Q-V plot for alumina approximates the characteristic parallelogram of a DBD. The rounded edges, and 'wobbly' discharging lines of the alumina Q-V plot originating from asymmetry in the discharges, and stepped edges due to the presence of individual streamers [31], being averaged from 40 consecutive AC cycles. The Q-V plot for barium titanate is 'almond shaped', featuring curved transitions from the capacitive to the discharging regions of the Q-V loop.…”

Evaluation of disposable medical device packaging materials under ozone sterilization

“…Streamer or microdischarges are created along the electrode gap when oxygen (O 2 ) or air is injected and a high voltage (ac or pulsed waveform) is applied. The dielectric material forms a barrier, which hinders the development of the arc discharge and the breakdown of the gas flowing into the gap (Peeters et al, 2016). In the case of DBD using O 2 as gas source, electrons dissociate the oxygen molecules into atoms that, through three-body reactions, generate O 3 species (Samaranayake et al, 2000).…”

Charge kinetics across a negatively biased semiconducting plasma-solid interface

“…Its investigation may thus perhaps bear novel possibilities for controlling discharges by manipulating processes inside the electrodes. The electric breakdown in dielectric barrier discharges, for instance, depends on the charge distribution inside the dielectric [4][5][6][7], and hence on the transport processes to which they give rise to. Revealing how gaseous and solid-based charge transport merge at the plasma-solid interface may thus allow to control the breakdown by a judicious choice of the dielectric.…”