한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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High-yield synthesis of thin multiwalled carbon nanotubes and their field emission characteristics

  • Jeong, Hee-Jin (Department of Physics, Sungkyunkwan Advanced Institute of Nanothchnology, and Center for Nanotubes and Nanostructured Composites, Sungkyunkwan University) ;
  • Song, Young-Il (Department of Physics, Sungkyunkwan Advanced Institute of Nanothchnology, and Center for Nanotubes and Nanostructured Composites, Sungkyunkwan University) ;
  • Choi, Ha-Kyu (Department of Physics, Sungkyunkwan Advanced Institute of Nanothchnology, and Center for Nanotubes and Nanostructured Composites, Sungkyunkwan University) ;
  • Kim, Gil-Yong (Department of Physics, Sungkyunkwan Advanced Institute of Nanothchnology, and Center for Nanotubes and Nanostructured Composites, Sungkyunkwan University) ;
  • Yu, Tong (Department of Physics, Sungkyunkwan Advanced Institute of Nanothchnology, and Center for Nanotubes and Nanostructured Composites, Sungkyunkwan University) ;
  • Lim, Seong-Chu (Department of Physics, Sungkyunkwan Advanced Institute of Nanothchnology, and Center for Nanotubes and Nanostructured Composites, Sungkyunkwan University) ;
  • Lee, Young-Hee (Department of Physics, Sungkyunkwan Advanced Institute of Nanothchnology, and Center for Nanotubes and Nanostructured Composites, Sungkyunkwan University)
  • Published : 2005.07.19
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Abstract

We have synthesized thin multi-walled carbon nanotubes (t-MWCNTs) using a catalytic chemical vapor deposition (CCVD) method with FeMoMgO catalyst. The number of tube walls were 2 ${\sim}$ 6 with the corresponding diameters of 3 ${\sim}$ 6 nm. We obtained high production yield of over 3000 wt% compared to the weight of the supplied catalyst. These t-MWCNTs revealed the intermediate structural characteristics between single- and multi-walled carbon nanotubes (SWCNTs and MWCNTs). We have also characterized the field emission properties such as turn-on field and emission current, and current degradation from these t-MWCNTs together with SWCNTs and MWCNTs.

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