Scientific Achievement
Controlled growth of large-scale single crystal graphene of any length/width on virtually any flat substrate.
Significance and Impact
This simple, wafer-scale process enables applications of graphene (or other 2D materials) for electronics or sensors.
Research Details
- A jet projects the source materials onto a moving substrate, effectively spray painting a film.
- Optimization produces a monolayer 2D film with a single orientation, suitable for device fabrication.
- Multiple techniques at CNMS have established the structure and quality; field-effect transistors have been demonstrated.
Ivan Vlassiouk, Yijing Stehle, Pushpa Raj Pudasaini, Raymond R. Unocic, Philip D. Rack, Arthur P. Baddorf, Ilia N. Ivanov, Nickolay V. Lavrik, Frederick List, Nitant Gupta, Ksenia Bets, Boris I. Yakobson, and Sergei Smirnov, “Evolutionary Selection Growth of Two-Dimensional Materials on Polycrystalline Substrates," Nature Materials 2018. DOI: 10.1038/s41563-018-0019-3
