Title :
DC and microwave response of a one-atom-thick graphene flake
Author :
Dragoman, M. ; Dragoman, D. ; Deligiorgis, G. ; Konstantinidis, G. ; Neculoiu, D. ; Cismaru, A. ; Plana, R.
Author_Institution :
Nat. Inst. for R&D in Microtechnol. (IMT), Bucharest, Romania
Abstract :
DC and microwave measurements have been performed on a one-atom-thick graphene flake positioned over a coplanar waveguide. The DC experiments revealed unexpected oscillations in the current-voltage characteristics, due to the chiral transport of charge carriers, while microwave measurements show that the impedance of graphene can be tuned by a gate voltage and can reach the 50 Omega value, necessary for impedance matching with other structures.
Keywords :
carrier density; coplanar waveguides; graphene; C; DC measurement; charge carriers; chiral transport; coplanar waveguide; current-voltage characteristics; gate voltage; impedance matching; microwave measurement; one-atom-thick graphene flake; Charge carriers; Charge measurement; Coplanar waveguides; Current measurement; Current-voltage characteristics; Impedance measurement; Microwave measurements; Performance evaluation; Position measurement; Voltage;
Conference_Titel :
Semiconductor Conference, 2009. CAS 2009. International
Conference_Location :
Sinaia
Print_ISBN :
978-1-4244-4413-7
DOI :
10.1109/SMICND.2009.5336528
