Formation of Nanostructured Carbon Films in Gas-Discharge Plasmas.

Autor: Zolotukhin, A. A., Obraztsov, A. N., Ustinov, A. O., Volkov, A. P.
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Zdroj: Journal of Experimental & Theoretical Physics; Dec2003, Vol. 97 Issue 6, p1154-1158, 5p
Abstrakt: Deposition of carbon materials from methane–hydrogen gas mixtures in a DC gas discharge is investigated. Parameters ensuring stable discharge conditions and synthesis of diamond and graphite-like films are determined. Optical emission spectroscopy is used to analyze the composition of the activated gas phase in the course of carbon film deposition. Synthesis of graphite-like carbon nanotubes and nanocrystallites is shown to correlate with the presence of C[sub 2] dimers in the plasma. A noncatalytic mechanism of synthesis of nanostructured graphite in a carbon-containing gas phase is proposed. © 2003 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index