"Normal metal contacts and small-scale graphene two-terminal junctions"

"Normal metal contacts and small-scale graphene two-terminal junctions"

Graphene has been proposed as a viable replacement for silicon on a number of electronic applications due to its high mobility. At Georgia Tech we have been studying charge transport through graphene junctions contacted to two normal metal contacts, aiming for a quantitatively accurate description. In this talk I will present an overview of the problem, making an emphasis on crucial differences between theory and experiment, that so far preclude quantitative modeling. Then I will present our results, including some very recent developments concerning graphene junctions attached to titanium contacts (titanium has been the metal of choice for contacting graphene in experiments)....

Date

March 15, 2011 - 9:00am

Location

Howey N110

Graphene has been proposed as a viable replacement for silicon on a number of electronic applications due to its high mobility. At Georgia Tech we have been studying charge transport through graphene junctions contacted to two normal metal contacts, aiming for a quantitatively accurate description. In this talk I will present an overview of the problem, making an emphasis on crucial differences between theory and experiment, that so far preclude quantitative modeling. Then I will present our results, including some very recent developments concerning graphene junctions attached to titanium contacts (titanium has been the metal of choice for contacting graphene in experiments). Charge leakage from the metal contacts will become an issue for small-scale devices.