Fabrication and modeling of a combined gold nanoparticle-carbon nanotube single electron transistor

• Scanning probe manipulation has been used to electrically connect two carbon nanotubes to an individual 7 nm gold particle, resulting in a system with multiple tunnel junctions. Single-electron charging effects in the gold particle was found to dominate the electrical transport measurements at T=4.2 K, whereas charging effects in the two carbon nanotube leads appeared as a fine structure. A simulation of the electrical transport in the system has been carried out using SIMON*, which is a Monte Carlo based simulation program for single-electronics. Using this program we have been able to fit a model to the experimental data and to explain the electrical transport characteristics

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Nyckelord

electrical transport measurements

single electron charging effects

multiple tunnel junctions

electrical contacts

scanning probe manipulation

transistor modelling

transistor fabrication

single electron transistor

gold nanoparticle

carbon nanotube

fine structure

simulation of nanostructures

Monte Carlo based simulation

7 nm

4.2 K

Au-C

Publikations- och innehållstyp

kon (ämneskategori)

ref (ämneskategori)