Laser-stimulated photodetachment of electrons from the negatively charged dielectric substrates

Abstract

It is shown experimentally that the photodetachment yield of surplus electrons created by plasma-induced charging of non-conductive surfaces of dielectric materials depends on the initial surface charge density and do not correlate with the tabulated affinity values of these materials. This unexpected result obtained using laser-stimulated photodetachment for fused silica, boron nitride, and alumina, is critically important for the understanding of charging and discharging dynamics, secondary electron emission, and photoemission effects affecting plasma-wall interactions relevant to surface and capacitively coupled discharges, dusty plasmas, electrostatic probe diagnostics and applications for plasma processing of materials, plasma propulsion and gas breakdown.

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• On the suitability of hBN as an insulator for 2D material-based ultrascaled CMOS devices
• Electron surface layer at the interface of a plasma and a dielectric wall
• Electric field cancellation on quartz: a Rb adsorbate induced negative electron affinity surface
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Cited by in corpus (1)

• Photonic Interactions with Semiconducting Barrier Discharges