About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
2D Materials – Preparation, Properties, Modeling & Applications
|
| Presentation Title |
Carbon based Novel 2-D and 3-D Materials: A New Frontier |
| Author(s) |
Jagdish Narayan |
| On-Site Speaker (Planned) |
Jagdish Narayan |
| Abstract Scope |
The new frontier beyond current silicon and copper-based devices lies in carbon and diamond-based materials. Carbon and its allotropes (graphite, diamond, latest Q-carbon) have ultimate properties ranging from wide bandgap semiconductors (diamond) to metals (graphene). Q-carbon has shown extraordinary properties, including record hardness and high-temperature superconductivity needed for next-generation quantum devices. B-doped Q-carbon shows record BCS superconductivity with transition temperature >187K. This is a Holy Grail for applications ranging from quantum devices to levitated trains and MRI imaging. These diamond related materials are metastable at ambient temperatures and pressures and have very high surface energy due to strong covalent bonding. Metastability presents a thermodynamic challenge for nucleation of phase-pure diamond structure, and high surface energy leads to three-dimensional growth rather two-dimensional growth needed for thin film devices. We show that our discoveries of Q-carbon and novel processing have solved these technical hurdles, thus creating a new solid-state device frontier. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Phase Transformations, Nanotechnology, Electronic Materials |