Electrical transport in graphene-carbon nanotube hybrid junctions

We performed transport experiments in 1D-2D hybrid systems consisting of graphene and single-walled carbon nanotube junctions. We fabricated suspended graphene-carbon nanotube junctions by transferring monolayer graphene sheets onto single-walled carbon nanotubes and etching the SiO2/Si substrates in hydrofluoric acid. We measured the transport properties as a function of magnetic field and gate voltage and electric field. Coulomb blockade feature at 260mK was observed. More of our latest data will be presented with theoretical models.