Self-consistent dc glow-discharge simulations applied to diamond film deposition reactors

M. Surendra, D. B. Graves, L. S. Plano

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

Self-consistent particle-fluid hybrid simulations have been used to study the structure of hydrogen dc discharges between parallel plates. A Monte Carlo simulation is used to describe individual energetic electrons in the cathode sheath, while the electrons and ions in the low-field region of the discharge are modeled as a fluid. Simulation results for pure H2 discharges at conditions typical in diamond growth (approximately 20-30 Torr at 1000 K, 100-200 A m-2) are in reasonable agreement with optical emission and Langmuir probe measurements. The space potential in these discharges is negative with respect to the anode, unlike comparable discharges at lower pressures. Anode glows are predicted by the simulation and are observed experimentally. Dissociation of H2 in the anode region contributes significantly to the flux of atomic hydrogen to the anode, where diamond is typically grown.

Original languageEnglish (US)
Pages (from-to)5189-5198
Number of pages10
JournalJournal of Applied Physics
Volume71
Issue number10
DOIs
StatePublished - 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

Fingerprint

Dive into the research topics of 'Self-consistent dc glow-discharge simulations applied to diamond film deposition reactors'. Together they form a unique fingerprint.

Cite this