AVS 57th International Symposium & Exhibition
    Graphene Focus Topic Monday Sessions
       Session GR+SS+TF+EM-MoM

Invited Paper GR+SS+TF+EM-MoM3
Epitaxial Graphene on SiC(0001)

Monday, October 18, 2010, 9:00 am, Room Brazos

Session: Epitaxial Graphene on SiC
Presenter: T. Seyller, Universität Erlangen, Germany
Correspondent: Click to Email

The properties of graphene, its fabrication, and its application are very active fields of research. The large carrier mobility and prospects for room-temperature ballistic transport raise hopes for application of graphene in electronic devices. Applications, however, demand growth methods suitable for producing graphene layers on a wafer scale. While this goal is impossible to reach with mechanical exfoliation, epitaxial graphene (EG) grown on the basal plane surfaces of silicon carbide (SiC) offers a much better prospective. In this talk I shall review studies of the structural, electronic, and transport properties of EG grown on SiC by solid-state decomposition at elevated temperatures. The first part describes a study of the electronic structure and structural properties of EG which can conveniently be determined using surface science techniques. In the second part I demonstrate how the growth of EG is improved by going from the traditional growth environment, namely ultrahigh vacuum, to an Argon atmosphere. The latter method leads to vastly improved EG films with properties similar to those of exfoliated graphene. Finally I shall discuss how the interface between SiC and graphene can be controlled by intercalation of foreign atoms.