Creation and STM/STS investigations of hydrogen ions induced defects on single-walled carbon nanotubes

G. Buchs; P. Ruffieux; P. Gröning; O. Gröning

doi:10.1088/1742-6596/61/1/032

Creation and STM/STS investigations of hydrogen ions induced defects on single-walled carbon nanotubes

G. Buchs
, P. Ruffieux
, P. Gröning
, O. Gröning

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We report on a technique able to create low-energy hydrogen ions induced defects on single walled carbon nanotubes (SWCNT) using a hydrogen electron cyclotron resonance (ECR) plasma source. Low temperature scanning tunneling microscopy (LT-STM) investigations revealed defect sites with hillocks-like features between 1 and 3 in height and lateral spreading between 0.5 nm and 2 nm. Scanning tunneling spectroscopy (STS) measurements on a metallic SWCNT revealed a strong modification of the electronic structure on a specific defect zone characterized by a pronounced peak in the local density of states (LDOS) close to the Fermi energy.

Original language	English
Article number	032
Pages (from-to)	160-165
Number of pages	6
Journal	Journal of Physics: Conference Series
Volume	61
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/61/1/032
State	Published - Apr 1 2007
Externally published	Yes

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AU - Gröning, O.

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AB - We report on a technique able to create low-energy hydrogen ions induced defects on single walled carbon nanotubes (SWCNT) using a hydrogen electron cyclotron resonance (ECR) plasma source. Low temperature scanning tunneling microscopy (LT-STM) investigations revealed defect sites with hillocks-like features between 1 and 3 in height and lateral spreading between 0.5 nm and 2 nm. Scanning tunneling spectroscopy (STS) measurements on a metallic SWCNT revealed a strong modification of the electronic structure on a specific defect zone characterized by a pronounced peak in the local density of states (LDOS) close to the Fermi energy.

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Creation and STM/STS investigations of hydrogen ions induced defects on single-walled carbon nanotubes

Abstract

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