| AVS 55th International Symposium & Exhibition | |
| Graphene Topical Conference | Tuesday Sessions |
| Session GR-TuP |
| Session: | Graphene Poster Session |
| Presenter: | D.A. Field, Texas State University |
| Authors: | D.A. Field, Texas State University C.A. Ventrice, Texas State University I. Jung, University of Texas D. Yang, University of Texas A. Velamakanni, University of Texas R.D. Piner, University of Texas R.S. Ruoff, University of Texas |
| Correspondent: | Click to Email |
Graphene oxide is an electrical insulator that shows potential for use in nanoscale electronic devices. An understanding of the thermal stability of graphene oxide sheets is important since the electrical, chemical, and mechanical properties of graphene oxide will change as it is reduced at elevated temperatures. In this study, graphene oxide films were grown by deposition of an aqueous solution of graphene oxide onto oxygen plasma cleaned silicon nitride on silicon substrates. The thermal stability of these films was studied by temperature programmed desorption under ultra-high vacuum conditions. The primary decomposition components of the films are CO and CO2. Analysis of the post-anneal chemical composition of the films was performed with x-ray photoelectron spectroscopy. Peaks associated with the C-C bond the C-OH, C=O, and C-O-OH functional groups are monitored at anneal temperatures up to 900 °C.