Transport spectroscopy of chemical nanostructures: the case of metallic single-walled carbon nanotubes.
Transport spectroscopy, a technique based on current-voltage measurements of individual nanostructures in a three-terminal transistor geometry, has emerged as a powerful new tool to investigate the electronic properties of chemically derived nanostructures. In this review, we discuss the utility of this approach using the recent studies of single-nanotube transistors as an example. Specifically, we discuss how transport measurements can be used to gain detailed insight into the electronic motion in metallic single-walled carbon nanotubes in several distinct regimes, depending on the coupling strength of the contacts to the nanotubes. Measurements of nanotube devices in these different conductance regimes have enabled a detailed analysis of the transport properties, including the experimental determination of all Hartree-Fock parameters that govern the electronic structure of metallic nanotubes and the demonstration of Fabry-Perot resonators based on the interference of electron waves.
Liang
Wenjie
W
Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA.
Bockrath
Marc
M
Park
Hongkun
H
D001692:Biological Transport; D004581:Electronics; D004583:Electrons; D007700:Kinetics; D008670:Metals / Q000737:chemistry*; D049329:Nanostructures; D037742:Nanotubes, Carbon / Q000737:chemistry*; D013057:Spectrum Analysis; D014173:Transistors, Electronic
D008670:Metals; D037742:Nanotubes, Carbon