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J. Korean Ceram. Soc. > Volume 41(12); 2004 > Article
Journal of the Korean Ceramic Society 2004;41(12): 880.
doi: https://doi.org/10.4191/kcers.2004.41.12.880
Selective Growth of the Carbon Nanofibers at the Groove Area of the MgO Substrate by the Iridium Catalyst
Sung-Hoon Kim
Department of Nano Materials Chemistry and Engineering, FIMM, Silla University
ABSTRACT
Carbon nanofibers could be selectively formed at the groove area of the MgO substrate using microwave plasma-enhanced chemical vapor deposition system. Iridium metal was used as a catalyst layer for the formation of the carbon nanofibers. The growth direction of the carbon nanofibers was vertical to the substrate surface. The selectively grown iridium-catalyzed carbon nanofibers show around $1.8V/{mu}m$ turn-on voltage and $1.0;mA/cm^2$ field emission current density at $2.65;V/{mu}m$ in the field emission measurement.
Key words: Carbon nanofibers, Iridium catalyst, Selective growth, Field emission characteristics
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