Regenerative Soot-VIII: Sputtering and formation of C1 and C2

TL;DR

This study investigates how neon glow discharge plasma causes sputtering and formation of atomic and molecular carbon species, analyzing how discharge parameters influence these processes.

Contribution

It provides detailed insights into the sputtering patterns and formation mechanisms of C1 and C2 in neon plasma, highlighting the effects of discharge conditions.

Findings

Sputtering and formation of C1 and C2 depend on discharge current and gas pressure.

The pattern of carbon species formation varies with neon excitation and ionization levels.

Results enhance understanding of carbon plasma chemistry in glow discharges.

Abstract

Photoemission spectroscopy of the regenerative soot in neon's glow discharge plasma reveals the contributions from the sputtered atomic and molecular carbon species. We present the pattern of sputtering and the formation of monatomic C1 and diatomic C2 as a function of the discharge current, the support gas pressure and the number densities of the excited and ionized neon as the active constituents of the carbonaceous plasma.