Graphene has been studied extensively because of its remarkable electrical, mechanical, and optical properties. Integration of graphene into devices brings it one step closer to applications in nanotechnology. The advancement in graphene fabrication by chemical vapor deposition allowed us to explore single-layer graphene. Here, we present the fabrication and characterization of single-layer graphene devices of micrometer to millimeter scale. We show, for the first time, that single-layer graphene devices can be used as working electrodes for electrochemical applications. We extended the study by investigating the functionalization by van der Waals interaction of single-layer graphene with a series of molecules using cyclic voltammetry and Raman spectroscopy. These characterizations provided us a better understanding of the graphene surface and graphene-molecule interface which enable new strategies for energy storage, selective sensing, and information storage and processing.

Fabrication and electrochemical characterizations of single-layer graphene devices

241st National Meeting (2011)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.