Physics – Condensed Matter – Materials Science
Scientific paper
2011-01-17
Applied Physics Express 4, 025102 (2011)
Physics
Condensed Matter
Materials Science
11 pages, 4 figures
Scientific paper
10.1143/APEX.4.025102
Graphene oxide (GO) is one of chemically modified graphenes and has been extensively studied worldwide. A monolayer sheet of GO which is chemically produced in solution can be deposited on various substrates. We have proved that use of graphite powder with a large grain size enables preparation of a single layer GO film that is larger than 100 micrometers easily and reproducibly. If it is possible to reduce the GO film completely, one can obtain graphene without mechanical exfoliation. However, the reduction methods employed so far have been insufficient to remove oxygen or to restore the long range order in graphene lattice. In the present work we annealed the GO sheet which was placed on Pt(111) in ultrahigh vacuum. The STM observation of the annealed specimen reveals that a honeycomb lattice appears together with moire structures of long range ordering. The XPS result indicated complete removal of oxygen from the GO sheet. These results would open a new way to synthesize a high quality graphene film, which replaces the conventional CVD method.
Obata Seiji
Saiki Koichiro
Tanaka Hiroshige
No associations
LandOfFree
Reduction of a Single Layer Graphene Oxide Film on Pt(111) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Reduction of a Single Layer Graphene Oxide Film on Pt(111), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduction of a Single Layer Graphene Oxide Film on Pt(111) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-285112