Intrinsic high-frequency characteristics of graphene layers

Details Intrinsic high-frequency characteristics of graphene layers Intrinsic high-frequency characteristics of graphene layers

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010njph...12k3031m&link_type=abstract

New Journal of Physics, Volume 12, Issue 11, pp. 113031 (2010).

Physics

Scientific paper

The experimental results for the high-frequency transport characteristics (from 0.5 to 110 GHz) of graphene sheets are presented. Samples with graphene sheets of a different number of layers, as well as samples without graphene, were fabricated and compared by their room-temperature radio-frequency (RF) transmission properties. From RF two-port network experiments, the circuit parameters of resistance, inductance and capacitance were extracted using a lumped circuit model that consists of graphene, metal electrodes and contacts. Self-inductance was suppressed with decreasing number of layers, possibly due to minimized interlayer conduction or scattering. The graphene-electrode contact property shows dependence on the number of graphene layers. Our investigation may promote an understanding of the intrinsic graphene characteristics and graphene-electrode contact configuration in passive graphene devices for RF applications.

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