Continued growth of single-walled carbon nanotubes.
We demonstrate the continued growth of single-walled carbon nanotubes (SWNTs) from ordered arrays of open-ended SWNTs in a way analogous to epitaxy. Nanometer-sized metal catalysts were docked to the SWNT open ends and subsequently activated to restart growth. SWNTs thus grown inherit the diameters and chirality from the seeded SWNTs, as indicated by the closely matched frequencies of Raman radial breathing modes before and after the growth.
Wang
Yuhuang
Y
Center for Nanoscale Science and Technology, Carbon Nanotechnology Laboratory, Department of Chemistry, Rice University, MS-100, P.O. Box 1892, Houston, Texas 77251-1892, USA.
Kim
Myung Jong
MJ
Shan
Hongwei
H
Kittrell
Carter
C
Fan
Hua
H
Ericson
Lars M
LM
Hwang
Wen-Fang
WF
Arepalli
Sivaram
S
Hauge
Robert H
RH
Smalley
Richard E
RE
D002384:Catalysis; D000431:Ethanol / Q000737:chemistry; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon; D013059:Spectrum Analysis, Raman; D013499:Surface Properties; D013696:Temperature
D037742:Nanotubes, Carbon; D000431:Ethanol