Atomic and molecular emission spectroscopy on an expanding argon/methane plasma

J.J. Beulens, C. Gastineau, N.T. Guerassimov, J. Koulidiati, D.C. Schram

Research output: Contribution to journalArticleAcademicpeer-review

19 Citations (Scopus)
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Abstract

A supersonically expanding cascaded arc plasma in argon is analyzed experimentally by emission spectroscopy. The thermal cascaded arc plasma is allowed to expand through a conically shaped nozzle in the arc anode into the vacuum vessel. In the nozzle monomers (C/sub x/H/sub y/) are injected. The monomers are dissociated and ionized by the argon carrier plasma, and transported toward a substrate by means of the expansion. Emission spectroscopy is used to obtain temperatures and particle densities. By varying external parameters (e.g., arc power, gas flow rates) plasma parameters can be linked with film parameters (e.g., refractive index)
Original languageEnglish
Pages (from-to)15-42
JournalPlasma Chemistry and Plasma Processing
Volume14
Issue number1
DOIs
Publication statusPublished - 1994

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