List of records in nano database
||Scanning Tunneling Microscope Investigation
of Carbon Nanotubes Produced by
Catalytic Decomposition of Acetylene
||Phys. Rev. B
||carbon nanotubes;STM;image formation;single wall;multi wall;catalytic decomposition
||This paper reports on the STM investigation of catalytically grown carbon nanotubes. The production of single wall carbon nanotubes is reported.
||A detailed scanning tunneling microscopy (STM)
study of carbon nanotubes prepared by catalytic
decomposition of acetylene over a supported
transition metal catalyst is reported.
Nanotubes with diameters in the 10-nm range and
others with diameters as small as 1 nm were
found. The mechanism of STM image formation
and image deconvolution with respect to the
tip shape are discussed, as well as the
corrections which have to be applied when
measuring by STM nanotube diameters in
the ranges of 10 nm and of 1 nm, respectively.
The behavior of a nanotube crossing steps
on the graphite surface is analyzed.
Modified height values measured on a
single-wall nanotube in regions where it
was subjected to strong mechanical stresses
indicate changes in the electrical
conductivity by several orders of magnitude.
Carbon nanotubes are found to be good candidates
to be used for STM tip shape characterization
in the nm range.
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