Title :
Synthesis and field emission properties of DWCNTs produced by a catalytic chemical vapor deposition method
Author :
Park, C.J. ; Lee, T.J. ; Lee, S.H. ; Jung, S.I. ; Choi, S.K. ; Kwon, K.M. ; Seo, S.H. ; Lee, C.J.
Author_Institution :
Dept. of Nanotechnology, Hanyang Univ., Seoul, South Korea
Abstract :
We have investigated the synthesis and field emission properties of high-quality double-walled carbon nanotubes (DWCNTs) using a catalytic chemical vapor deposition method. For the synthesis of DWCNTs using a catalytic CVD method, we used various carbon containing molecules such as methane, ethylene, THF and propanol over Fe-Mo embedded MgO support material. The produced carbon materials using a catalytic CVD method indicated high-purity DWCNT bundles free of amorphous carbon covering on the surface. DWCNTs showed low turn-on voltage and higher emission stability compared with SWCNTs.
Keywords :
carbon nanotubes; catalysis; chemical vapour deposition; electron field emission; C; DWCNT; catalytic chemical vapor deposition; double-walled carbon nanotubes; emission stability; field emission; Amorphous materials; Argon; Carbon dioxide; Carbon nanotubes; Chemical vapor deposition; Current density; Hydrogen; Inductors; Organic materials; Stability; DWCNTs; catalytic CVD; field emission;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2005. IVNC 2005. Technical Digest of the 18th International
Print_ISBN :
0-7803-8397-4
DOI :
10.1109/IVNC.2005.1619598
