4 papers
Effect of back-gate on contact resistance and on channel conductance in graphene-based field-effect transistors
A. Di Bartolomeo, S. Santandrea, F. Giubileo +7
We study the contact resistance and the transfer characteristics of back-gated field effect transistors of mono- and bi-layer graphene. We measure specific contact resistivity of ~…
Field emission from single and few-layer graphene flakes
S. Santandrea, F. Giubileo, V. Grossi +5
We report the observation and characterization of field emission current from individual single- and few-layer graphene flakes laid on a flat SiO2/Si substrate. Measurements were p…
Charge transfer and trapping as origin of a double dip in the transfer characteristics of graphene based field-effect transistors
Antonio Di Bartolomeo, Filippo Giubileo, Salvatore Santandrea +4
We discuss the origin of an additional dip other than the charge neutrality point observed in transfer characteristics of graphene-based field-effect transistors. The double-dip is…
Field emission properties of as-grown multiwalled carbon nanotube films
F. Giubileo, A. Di Bartolomeo, M. Sarno +4
Multiwalled carbon nanotubes have been produced by ethylene catalytic chemical vapor deposition and used to fabricate thick and dense freestanding films ("buckypapers") by membrane…