Multi-walled carbon nanotubes of 200 nm diameter and carbon micro-balloons

Author

Truong, V. -T ; McMahon, P.J. ; Olsson-Jacques, C.L. ; Wilson, A.R. ; Mathys, G.I.

Author_Institution

Maritime Platforms Div., Defence Sci. & Technol. Organ., Fishermans Bend, VIC, Australia

fYear

2010

fDate

22-26 Feb. 2010

Firstpage

66

Lastpage

69

Abstract

The growth of multi-walled carbon nanotubes (MWNTs) with a large diameter of 200 nm on nickel (Ni) coated silicon wafer at different growth times up to 30 min was investigated. CNT cobwebs were found after a short growth time (7 min) and developed into ordered forests at higher growth times (>; 10 min). One of the important formation features of the CNTs in this study was the coaxial structure of the nanotubes, ie. a MWNT within a MWNT. Its formation was due to secondary nanostructures of Ni particles. Unexpected growth of carbon micro-balloons occurred when high flow rates of carbon feedstock was used or when growth time exceeded 15 min.

Keywords

carbon nanotubes; nanofabrication; C; Ni-Si; Si; carbon feedstock; carbon microballoons; coated silicon wafer; coaxial structure; multiwalled carbon nanotubes; size 200 nm; time 7 min; Carbon; Carbon nanotubes; Electron tubes; Films; Nickel; Silicon; carbon micro-balloons; carbon nanotubes; coaxial structures;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoscience and Nanotechnology (ICONN), 2010 International Conference on

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4244-5261-3

Electronic_ISBN

978-1-4244-5262-0

Type

conf

DOI

10.1109/ICONN.2010.6045178

Filename

6045178