Open AccessSpectral study of argon-methane mixture plasma jet generated by a DC plasmatron
Author(s) -
D. I. Kavyrshin,
М. Б. Шавелкина,
V. F. Chinnov,
A S Miazin
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2100/1/012018
Subject(s) - plasmatron , plasma , spectral line , argon , emission spectrum , jet (fluid) , excitation temperature , atomic physics , analytical chemistry (journal) , materials science , chemistry , physics , quantum mechanics , astronomy , chromatography , thermodynamics
We present the results of studying optical emission spectra of Ar:CH 4 plasma produced on a DC plasmatron for graphene synthesis. We have identified the basic set of spectral lines and bands in the obtained spectra and shown that H lines and C 2 bands appear due to direct excitation by an electron strike of corresponding neutral particles. C 2 molecular bands were also identified in the spectra with intensity considerably lower compared to previous studies where He: C 2 H 2 mixture was used as plasma-forming gas.