Dust particle charge in plasma with ion flow and electron depletion

Abstract

The charge of micrometer-sized dust particles suspended in plasma above the powered electrode of radio-frequency (RF) discharges is studied. Using a self-consistent fluid model, the plasma profiles above the electrode are calculated and the electron depletion towards the electrode, as well as the increasing flow speed of ions towards the electrode, are considered in the calculation of the dust particle floating potential. The results are compared with those reported in literature and the importance of the spatial dust charge variation is investigated.

References in corpus (2)

• Experimental and computational characterization of a modified GEC cell for dusty plasma experiments
• A Simple Method to Measure the Interaction Potential of Dielectric Grains in a Dusty Plasma

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• The origin of large amplitude oscillations of dust particles in a plasma sheath
• Vertical probe-induced asymmetric dust oscillation in complex plasma
• Anomalous diffusion due to the non-Markovian process of the dust particle velocity in complex plasmas
• Effects of collision enhanced charging on dust crystal