Real-time monitoring of diamond nucleation and growth using field-enhanced thermionic emission current

Y. X. Han, M. Zhao, J. Sun, H. Ling, T. Gebre, Y. F. Lu

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Diamond nucleation and growth in the combustion-flame method were monitored in real time using thermionic emission current from the deposited diamond films. It was observed that the emission current evolved over three periods, the incubation, the fast increase, and the saturation periods. Ball-shaped diamond particles, faceted diamond crystals, and diamond films with well-faceted crystals were formed in the three periods. The current from a diamond-seeded substrate started to increase immediately without an incubation period, confirming that the current is from the diamond. Therefore, the current could be used for real-time monitoring of the diamond nucleation and growth.

Original languageEnglish (US)
Pages (from-to)1423-1426
Number of pages4
JournalApplied Surface Science
Volume254
Issue number5
DOIs
StatePublished - Dec 30 2007

Keywords

  • Combustion-flame deposition
  • Diamond films
  • Negative bias
  • Real-time monitoring
  • Thermionic emission

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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