ausblenden:
Schlagwörter:
nanotubes; chemical vapor deposition; high resolutions electron microscopy; electron diffraction
Zusammenfassung:
We have developed a versatile catalyst-assisted chemical vapor
deposition (CVD) technique for the synthesis of single-walled carbon
nanombes (SWNTs) from discrete nickel nanoparticles (average diameter
of 4.7 +/- 1.5 nm). Atomic force microscopy (AFM), transmission
electron microscopy (TEM) and electron diffraction are used to
characterize these as-grown nanombes. On a particular sample we found
that the SWNTs have an average chiral angle of 25.3 degrees. This
result shows that a control of the chiral angle of SWNT with large
diameters (mean diameter = 1.75 nm) and with a relatively broad
diameter distribution (standard deviation = 0.5 nm) is achievable to a
certain extent. (c) 2006 Elsevier B.V. All rights reserved.
