Nanoparticle Information Library

Nanoparticle Information Library (NIL)

  Disclaimer  |  
NIL Home About NIL NIL News Search Contact Contribute Join Mailing List Links

Nanoparticle Report

Click to Enlarge
or View Image
Element 1: Carbon
Structure: Nano Tubes
Origin: Flame combustion
PPMD: 1  nm
Added to NIL: 7/20/2005 8:58:00 AM
Contributor: Cees   Dekker  ,   Delft University of Technology 

Related Website: 

Research Abstract:
At Delft, we obtained the first transport results on individual single-walled carbon nanotubes. These were grown by the Smalley group at Rice University. We demonstrated that it is possible to deposit individual nanotube molecules on nanofabricated electrodes. At low temperatures step-like current-voltage characteristics are obtained that indicate single-electron transport with Coulomb blockade and resonant tunneling through single molecular orbitals. In Coulomb blockade, transport is blocked at low bias since the capacitance of the nanotube is so small that adding a single electron requires a charging energy that is larger than the thermal energy. The zero-bias conductance can be restored by tuning the electrostatic potential of the tube with a gate voltage. Quite remarkably, the nanotubes appear to behave as coherent quantum wires. Electron-transport spectroscopy was carried out at mK temperatures. The density of states of the molecule appears to consist of well-separated discrete electron states. Their ~0.4 meV energy separation corresponds to estimates for a one-dimensional   less info

Additional Particle Information 

Related Publications:
P.D. Jarillo-Herrero, J.Kong, H.S.J. van der Zant, C. Dekker, L.P. Kouwenhoven, and S. De Franceschi Tunable orbital pseudospin and multi-level Kondo effect in carbon nanotubes In H Kuzmany, J Fink, M Mehring, & S Roth (Eds.), Properties of Novel Nanostructures Vol. 786. Aip conference proceedings (pp. 482-489). 2005, Kirchberg, Austria: AIP B.J. LeRoy, J. Kong, V.K. Pahilwani, C. Dekker, and S.G. Lemay Three-terminal scanning tunneling spectroscopy of suspended carbon nanotubes Phys. Rev. more info
Health Information

Nanoparticle Options
Quick Search Homepage 
Featured Nanoparticles 
Advanced Search 
Browse Nanoparticles 
Browse Contributors 

Share Information