| AVS 57th International Symposium & Exhibition | |
| Graphene Focus Topic | Monday Sessions |
| Session GR+NS-MoA |
| Session: | Graphene: Chemical Reactions |
| Presenter: | P.E. Sheehan, Naval Research Laboratory |
| Authors: | P.E. Sheehan, Naval Research Laboratory Z. Wei, Naval Research Laboratory D. Wang, Georgia Institute of Technology W.-K. Lee, Naval Research Laboratory M.K. Yakes, Naval Research Laboratory W.P. King, University of Illinois at Urbana-Champaign E. Riedo, Georgia Institute of Technology A.R. Laracuente, Naval Research Laboratory J.A. Robinson, Naval Research Laboratory S.G. Walton, Naval Research Laboratory |
| Correspondent: | Click to Email |
Graphene is the most likely carbon-based successor material for CMOS electronics. Recently, interest in chemically modified graphene (CMG) has risen for producing large-scale flexible conductors and for its potential to open an electronic gap in graphene structures. We have developed a means to tune the topographical and electrical properties of several CMGs with nanoscopic resolution by local thermal processing with an AFM tip. Heating converts the CMG back towards graphene with nanoscale resolution. Nanostructures of one CMG, graphene oxide, show an increase in conductivity up to four orders of magnitude as compared to pristine material. Variably conductive graphene nanoribbons have been produced in a single step that is clean, rapid and reliable. Critically, the "carbon skeleton" is continuous across the CMG/graphene boundary. Recent work suggests that ribbons formed this way may be superior to ribbons that were cut.