Prof. Jing Kong
Massachusetts Institute of Technology
March 10, 2009 | 12:00 to 01:00 | 521 Cory Hall, Hogan Room
Host: Ali Javey
Graphene has exceptional electronic, thermal and mechanical properties. For the realization of graphene-related applications, it is necessary to develop reliable and low cost fabrication methods of graphene-based structures, ideally on any substrates. In this talk I will present our method of fabricating large area (~cm^2) films of single- to few-layer graphene and transferring the films to non-specific substrates. The graphene films are synthesized by ambient pressure chemical vapor deposition. They consist of regions of 1 to ~10 graphene layers and have an average thickness of 2-3 nm and are continuous over the entire area. Preliminary characterizations using Transmission Electron Microscopy (TEM), Scanning tunneling microscopy (STM) have revealed the crystalline nature of the films and various stacking orientation between of layers. Detailed Raman characterization of the films will also be presented. The method presented in this work can potentially be scaled to industrial production of graphene films, for applications such as ultra-thin conductive and transparent electrodes, or devices and interconnect for integrated circuits.
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