| AVS 60th International Symposium and Exhibition | |
| Electronic Materials and Processing | Thursday Sessions |
| Session EM+AS+EN+TF-ThM |
| Session: | Hybrid and Organic Electronics |
| Presenter: | E.H. Lock, Naval Research Lab |
| Authors: | E.H. Lock, Naval Research Lab D. Delongchamp, National Institute of Standards and Technology (NIST) M. Laskoski, Naval Research Lab M. Baraket, Lab de Chimie Inorganique et Biologique, France S.P. Mulvaney, Naval Research Lab S.C. Hernandez, Naval Research Lab P.E. Sheehan, Naval Research Lab J.T. Robinson, Naval Research Lab C. Jaye, NIST D.A. Fisher, NIST S.G. Walton, Naval Research Lab |
| Correspondent: | Click to Email |
Organic materials are widely used because they are cost effective and have excellent physical and mechanical properties. The polymers of interest in this work are polystyrene (PS) and ultra-high molecular weight polyethylene (UHMW PE). PS has been successfully used as electronics and biosensors platforms. UHMW PE is the material in lightweight high strength Dyneema and Spectra fibers for personal armor. However, to enable production of flexible and wearable electronic devices we need to transform the inherently low thermal and electrical polymer conductance. In order to maintain low cost it is technologically beneficial to modify only the surface of the polymer while preserving the bulk properties. This approach leads to development of hybrid materials. We recently reported production of graphene/polystyrene (Gr/PS) hybrid material using a dry transfer print method [1] . Graphene is an excellent “coating” for a polymer because it is flexible and has high thermal and electrical conductivity. Furthermore, its remarkable chemical stability and low permeability allows for applications as barrier coating for plastics.
However, production of graphene/polymer hybrids is not trivial because graphene has to be transferred from the growth substrates (e.g. copper foil, SiC) to polymers without introducing chemical and structural defects. In this talk we will show that there may be a “trade off” between the use of attachment chemistries to ensure good transfer, and the resultant performance of the transferred graphene. More aggressive attachment chemistries ensure transfer success at the cost of compromising the transport properties of graphene. Different interface preparation approaches may prove to be optimal for different applications, depending on whether transfer yield or surface conductivity is more important. This work was supported by the Naval Research Laboratory Base Program. S. C. Hernandez and M. Baraket were postdoctoral National Research Council fellows during the completion of this work.
[1] E. H. Lock, et. Al. ”High-quality uniform dry transfer of graphene to polymers”, Nano Letters 12, 102 (2012).