BROWSE

Related Researcher

Author's Photo

Shin, Hyung-Joon
Nanoscale Materials Science Lab (NMSL)
Research Interests
  • Scanning tunneling microscopy, surface science, interface science, nanomaterials

ITEM VIEW & DOWNLOAD

Electronic structure of single-walled carbon nanotubes on ultrathin insulating films

Cited 8 times inthomson ciCited 6 times inthomson ci
Title
Electronic structure of single-walled carbon nanotubes on ultrathin insulating films
Author
Shin, Hyung-JoonClair, SylvainKim, YousooKawai, Maki
Keywords
carbon nanotubes; conduction bands; Fermi level; scanning tunnelling microscopy; valence bands; work function
Issue Date
2008-12
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.93, no.23, pp.233104-1 - 233104-3
Abstract
The electronic structures of single-walled carbon nanotubes on Ag(100) and on ultrathin insulating NaCl(100)/Ag(100) were studied using low-temperature scanning tunneling microscopy. The Fermi level of the nanotubes was shifted toward the conduction band on Ag(100), while it was shifted toward the valence band on NaCl films. We explain this opposite behavior by different basic mechanisms accounting for the Fermi level shifts. On the metal surface, the work function difference between the tube and the substrate determines the direction of the Fermi level shift. In the case of carbon nanotubes on insulating films, the electric field resulting from the dipole moment formed at the interface between the insulating film and the metal plays a decisive role in determining the Fermi level.
URI
Go to Link
DOI
10.1063/1.3046114
ISSN
0003-6951
Appears in Collections:
MSE_Journal Papers
Files in This Item:
2-s2.0-57649128296.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU