Abstract
Carbon nanotubes are predicted to be metallic or semiconducting depending on their diameter and the helicity of the arrangement of graphitic rings in their walls. Scanning tunnelling microscopy (STM) offers the potential to probe this prediction, as it can resolve simultaneously both atomic structure and the electronic density of states. Previous STM studies of multi-walled nanotubes and single-walled nanotubes (SWNTs) have provided indications of differing structures and diameter-dependent electronic properties, but have not revealed any explicit relationship between structure and electronic properties. Here we report STM measurements of the atomic structure and electronic properties of SWNTs. We are able to resolve the hexagonal-ring structure of the walls, and show that the electronic properties do indeed depend on diameter and helicity. We find that the SWNT samples exhibit many different structures, with no one species dominating.
| Original language | English |
|---|---|
| Pages (from-to) | 62-64 |
| Number of pages | 3 |
| Journal | Nature |
| Volume | 391 |
| Issue number | 6662 |
| DOIs | |
| Publication status | Published - Jan 1 1998 |
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Atomic structure and electronic properties of single-walled carbon nanotubes. / Odom, Teri W; Huang, Jin Lin; Kim, Philip; Lieber, Charles M.
In: Nature, Vol. 391, No. 6662, 01.01.1998, p. 62-64.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Atomic structure and electronic properties of single-walled carbon nanotubes
AU - Odom, Teri W
AU - Huang, Jin Lin
AU - Kim, Philip
AU - Lieber, Charles M.
PY - 1998/1/1
Y1 - 1998/1/1
N2 - Carbon nanotubes are predicted to be metallic or semiconducting depending on their diameter and the helicity of the arrangement of graphitic rings in their walls. Scanning tunnelling microscopy (STM) offers the potential to probe this prediction, as it can resolve simultaneously both atomic structure and the electronic density of states. Previous STM studies of multi-walled nanotubes and single-walled nanotubes (SWNTs) have provided indications of differing structures and diameter-dependent electronic properties, but have not revealed any explicit relationship between structure and electronic properties. Here we report STM measurements of the atomic structure and electronic properties of SWNTs. We are able to resolve the hexagonal-ring structure of the walls, and show that the electronic properties do indeed depend on diameter and helicity. We find that the SWNT samples exhibit many different structures, with no one species dominating.
AB - Carbon nanotubes are predicted to be metallic or semiconducting depending on their diameter and the helicity of the arrangement of graphitic rings in their walls. Scanning tunnelling microscopy (STM) offers the potential to probe this prediction, as it can resolve simultaneously both atomic structure and the electronic density of states. Previous STM studies of multi-walled nanotubes and single-walled nanotubes (SWNTs) have provided indications of differing structures and diameter-dependent electronic properties, but have not revealed any explicit relationship between structure and electronic properties. Here we report STM measurements of the atomic structure and electronic properties of SWNTs. We are able to resolve the hexagonal-ring structure of the walls, and show that the electronic properties do indeed depend on diameter and helicity. We find that the SWNT samples exhibit many different structures, with no one species dominating.
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U2 - 10.1038/34145
DO - 10.1038/34145
M3 - Article
VL - 391
SP - 62
EP - 64
JO - Nature
JF - Nature
SN - 0028-0836
IS - 6662
ER -