Articles
  • Simultaneous growth of graphene and vertically aligned single-walled carbon nanotubes at low temperature by chemical vapor deposition
  • Suck Won Honga, Kwang Ho Kimb,c, Hyun Kyung Jungd, Daesuk Kime,* and Hyung Woo Leec,*
  • a Department of Nanomaterials Engineering, Pusan National University, Miryang 627-706, Korea b School of Materials Science and Engineering, Pusan National University, Busan 609-735, Korea c National Core Research Center for Hybrid Materials solution, Pusan National University, Busan 609-735, Korea d Department of Diagnostic Radiology, Inje University college of Medicine, Haeundae Paik Hospital, Busan 612-030, Korea e Division of Mechanical System Engineering, Chonbuk National University, Jeonju 561-756, Korea
Abstract
We present the simultaneous growth of single-walled carbon nanotubes and graphene with the optimal conditions of the synthesizing parameters. The dense and vertically aligned SWNTs having the length of over 100 μm was grown by 2 nm-thick Fe catalytic layer. From 650 οC, the vertically well-grown SWNTs were obtained by increasing the temperature. The severallayered graphene was synthesized with the gas mixing ratio of 15 : 1(H2: C2H2) at 650 οC and higher temperatures. With these optimal conditions, the vertically well-grown SWNTs and the several-layered graphene were synthesized simultaneously. The presence of SWNTs and the layer of graphene were verified by field emission scanning electron microscopy and high resolution transmission electron microscopy. From the result of this simultaneous synthesizing approach, the possibility of one step growth process of CNTs and grapheme could be verified.

Keywords: Graphene, Single-walled carbon nanotube, Simultaneous growth, Chemical vapor deposition.

This Article

  • 2012; 13(S1): 154-157

    Published on Aug 31, 2012