PT Journal
AU Matyushkin, Y
   Kaurova, N
   Voronov, B
   Goltsman, G
   Fedorov, G
TI On chip carbon nanotube tunneling spectroscopy
SO Fullerenes, Nanotubes and Carbon Nanostructures
PY 2020
BP 50
EP 53
VL 28
IS 1
DI 10.1080/1536383X.2019.1671365
DE carbon nanotubes; CNT; scanning tunneling microscope; STM
AB We report an experimental study of the band structure of individual carbon nanotubes (SCNTs) based on investigation of the tunneling density of states, i.e. tunneling spectroscopy. A common approach to this task is to use a scanning tunneling microscope (STM). However, this approach has a number of drawbacks, to overcome which, we propose another method – tunneling spectroscopy of SCNTs on a chip using a tunneling contact. This method is simpler, cheaper and technologically advanced than the STM. Fabrication of a tunnel contact can be easily integrated into any technological route, therefore, a tunnel contact can be used, for example, as an additional tool in characterizing any devices based on individual CNTs. In this paper we demonstrate a simple technological procedure that results in fabrication of good-quality tunneling contacts to carbon nanotubes.
ER