Electron kinetics at the plasma interface
arXiv:1804.00915 · doi:10.1140/epjd/e2017-80512-0
Abstract
The most fundamental response of an ionized gas to a macroscopic object is the formation of the plasma sheath. It is an electron depleted space charge region, adjacent to the object, which screens the object's negative charge arising from the accumulation of electrons from the plasma. The plasma sheath is thus the positively charged part of an electric double layer whose negatively charged part is inside the wall. In the course of the Transregional Collaborative Research Center SFB/TRR24 we investigated, from a microscopic point of view, the elementary charge transfer processes responsible for the electric double layer at a floating plasma-wall interface and made first steps towards a description of the negative part of the layer inside the wall. Below we review our work in a colloquial manner, describe possible extensions, and identify key issues which need to be resolved to make further progress in the understanding of the electron kinetics across plasma-wall interfaces.
arXiv comment14 pages, 8 figures
References in corpus (19)
- Mie scattering by a charged dielectric particle
- Electron surface layer at the interface of a plasma and a dielectric wall
- A computationally assisted spectroscopic technique to measure secondary electron emission coefficients in radio frequency plasmas
- Absorption of an electron by a dielectric wall
- Optical signatures of the Charge of a Dielectric Particle in a Plasma
- Integrated micro-plasmas in silicon operating in helium
- Physisorption of an electron in deep surface potentials off a dielectric surface
- Many-body theory of the neutralization of strontium ions on gold surfaces
- Microscopic theory of electron absorption by plasma-facing surfaces
- Thermally Enhanced Neutralization in Hyperthermal Energy Ion Scattering
- Kinetic modeling of the electronic response of a dielectric plasma-facing solid
- Kinetic simulation of the sheath dynamics in the intermediate radio-frequency regime
- Infrared light extinction by charged dielectric core-coat particles
- Auger de-excitation of metastable molecules at metallic surfaces
- Pseudo-particle approach for charge-transferring molecule-surface collisions
- Phonon-mediated sticking of electrons at dielectric surfaces
- Phonon-mediated desorption of image-bound electrons from dielectric surfaces
- Surface mode hybridization in the optical response of core-shell particles
- Mixed-valence correlations in charge-transferring atom-surface collisions