Synthesis of Thin Multiwalled Carbon Nanotubes for Field Emission by Optimizing Gas Compositions in Thermal Chemical Vapor Deposition

  • Jeon, Hong-Jun (Faculty of Nanotechnology and Advanced Materials Engineering Sejong University) ;
  • Cho, Hyun-Jin (Faculty of Nanotechnology and Advanced Materials Engineering Sejong University) ;
  • Kim, Young-Rae (Faculty of Nanotechnology and Advanced Materials Engineering Sejong University) ;
  • Lee, Nae-Sung (Faculty of Nanotechnology and Advanced Materials Engineering Sejong University)
  • Published : 2007.08.27

Abstract

This study investigated the effect of $H_2$ upon the growth of CNTs by changing the ratios of H2 to Ar during the growth using $C_2H_2$. With higher contents of $H_2$ in Ar, CNTs became longer and thinner, resulting in their higher aspect ratios.

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