Electron transport and excitations in graphene

Graphene is a two-dimensional, single atomic layer carbon structure with many unique physical and chemical properties. In this article, I will focus on electron transport through graphene, both incoherent and coherent, the control of the current through external electric fields, and the realization of high frequency transistors based on graphene. I will also discuss briefly graphene.’s optical properties and how they can be used to create wide wavelength range, ultra-fast photodetectors. Finally, I will present results on the field-induced opening of a tunable band-gap in bi-layer graphene.