| AVS 58th Annual International Symposium and Exhibition | |
| Graphene and Related Materials Focus Topic | Tuesday Sessions |
| Session GR-TuA |
| Session: | Graphene on Dielectrics, Graphene Transfer to Novel Substrates |
| Presenter: | Evgeniya Lock, Naval Research Laboratory (NRL) |
| Authors: | E.H. Lock, Naval Research Laboratory (NRL) S.G. Walton, Naval Research Laboratory (NRL) M. Baraket, Naval Research Laboratory (NRL) M. Laskoski, Naval Research Laboratory (NRL) S. Mulvaney, Naval Research Laboratory (NRL) W.K. Lee, Naval Research Laboratory (NRL) P.E. Sheehan, Naval Research Laboratory (NRL) D. Hines, Laboratory for Physical Sciences (LPS) J.T. Robinson, Naval Research Laboratory (NRL) J. Tosado, University of Maryland, College Park M. Fuhrer, University of Maryland, College Park |
| Correspondent: | Click to Email |
The ability to grow and transfer large area single-layer graphene is critical from both fundamental and applied points of view. The transfer of large area samples will facilitate fundamental studies of graphene’s unique properties. It can also allow for the fabrication of three-dimentional structures, electrically insulated graphene bilayers, graphene on previously unexplored substrates and “curved” graphene with non-trivial geometry. Currently, single layer graphene grown via CVD on metal foils is transferred to other substrates via chemical etching of the foil. The transfer process is time consuming, generates chemical waste, and destroys the foils.
We have developed method for direct dry transfer of graphene grown on Cu foils to polymers. The method relies on the differential adhesion between graphene, the metal foil, and the receiving polymer. A successful print results when the adhesion of graphene to the polymer surface is stronger than its adhesion to the metal foil. Plasma treatment of polymers allowed for the attachment of perfluorophenylazide (PFPA) linker molecule. The transfer printing was performed by placing the PFPA treated polymer surface in contact with graphene covered Cu foil and applying heat and pressure. Then, the polymer substrate with transferred graphene was separated from the Cu foil. In this talk, details of the printing process along with graphene film characterization will be discussed.
This work was supported by the Office of Naval Research. M. Baraket appreciates the NRL/NRC postdoctoral research fellowship.