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Characterisation of Exfoliated Graphene

Omid Habibpour (Institutionen för mikroteknologi och nanovetenskap, Fysikalisk elektronik) ; Josip Vukusic (Institutionen för mikroteknologi och nanovetenskap, Fysikalisk elektronik) ; Jan Stake (Institutionen för mikroteknologi och nanovetenskap, Fysikalisk elektronik)
WOCSDICE 2009 (2009)
[Konferensbidrag, refereegranskat]

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.

Nyckelord: Graphene, frequency multiplier



Denna post skapades 2009-05-26. Senast ändrad 2017-01-27.
CPL Pubid: 94433

 

Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Fysikalisk elektronik (2007-2010)

Ämnesområden

Elektronik

Chalmers infrastruktur