Fullerene formation during production of chemical vapor deposited diamond

Lee Chow, Hao Wang, Stephen Kleckley, Terry K. Daly, P R Buseck

Research output: Contribution to journalArticle

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Abstract

We report a novel method for fullerene formation during diamond synthesis via a hot filament, chemical vapor deposition (CVD) procedure. The fullerenes occur in the soot that forms as a by-product on the edges and rear surface of the substrate holder, where the temperature does not favor diamond deposition. Mass spectrometry of the soot shows a peak having a mass to charge ratio corresponding to C60. From typical concentrations of gaseous species in the diamond-growing CVD chamber, we conclude that hydrocarbon species such as CH3 or C2H2 may be the precursors for the fullerene in the CVD chamber. The atomic hydrogen in the gaseous species is believed to play an important role in removing the hydrogen from hydrocarbon to form the all-carbon fullerene. Our observations also suggest that fullerenes produced in the CVD diamond growth chamber play a role in diamond nucleation on foreign substrates.

Original languageEnglish (US)
Pages (from-to)430
Number of pages1
JournalApplied Physics Letters
DOIs
StatePublished - 1995

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fullerenes
diamonds
vapors
vapor deposition
soot
hydrocarbons
chambers
phytotrons
hydrogen
holders
filaments
mass spectroscopy
nucleation
carbon
synthesis
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Fullerene formation during production of chemical vapor deposited diamond. / Chow, Lee; Wang, Hao; Kleckley, Stephen; Daly, Terry K.; Buseck, P R.

In: Applied Physics Letters, 1995, p. 430.

Research output: Contribution to journalArticle

Chow, Lee ; Wang, Hao ; Kleckley, Stephen ; Daly, Terry K. ; Buseck, P R. / Fullerene formation during production of chemical vapor deposited diamond. In: Applied Physics Letters. 1995 ; pp. 430.
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