| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Computational Thermodynamics and Kinetics
|
| Presentation Title |
Thermodynamics, Structure, and the 3D Geometry of Bendable 2D Materials |
| Author(s) |
Joel M. Berry |
| On-Site Speaker (Planned) |
Joel M. Berry |
| Abstract Scope |
The ease with which thin elastic sheets can deform out-of-plane leads to many interesting and some unusual phenomena that arise from couplings between in-plane/2D structure & thermodynamics and the 3D shape of the sheet. I will discuss two studies in which such couplings are exploited to design materials with novel and tailored properties. The first involves a new approach to form nanoscale 3D objects by patterned alloying of 2D transition metal dichalcogenide monolayers and to compositionally pattern monolayers using non-flat substrates. The second involves a new geometry-based mechanism for controlling the relative atomic stacking of layered 2D sheets, applied to stabilizing ABC-stacked trilayer-graphene. First principles-informed thermodynamic and mechanical models will be presented and used to explore the interplay between 2D states and 3D geometry. Comparisons will be made with experiments, and applications spanning flexible electronics, catalysis, optical devices, responsive coatings, and soft robotics discussed. Prepared by LLNL under Contract DE-AC52-07NA27344. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |