Characterisation of Exfoliated Graphene
Paper i proceeding, 2009

High-frequency devices based on graphene is a promising field of research. In this paper we investigate two important parameters which based on theory are essential in order to have nonlinear responses in graphene. The first parameter is scattering time which should be as high as 1ps. Also the electrical field of the incident radiation should be higher a certain threshold in order to have nonlinear response. This threshold is generally quite high and increases with frequency and carrier density, so it is essential that graphene flake tolerate high electrical field. The first condition cannot be reached by graphene on SiO2/Si substrate according to our investigation.

frequency multiplier

Graphene

Författare

Omid Habibpour

Chalmers, Teknisk fysik, Fysikalisk elektronik

Josip Vukusic

Chalmers, Teknisk fysik, Fysikalisk elektronik

Jan Stake

Chalmers, Teknisk fysik, Fysikalisk elektronik

WOCSDICE 2009

Ämneskategorier

Annan elektroteknik och elektronik