| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances and Discoveries in Non-equilibrium Driven Nanomaterials and Thin Films
|
| Presentation Title |
Tunable 2D Materials from Synthesis to Applications |
| Author(s) |
Wonbong Choi |
| On-Site Speaker (Planned) |
Wonbong Choi |
| Abstract Scope |
Recent advances in atomically thin two-dimensional (2D) materials, specially transition metal dichalcogenides (TMDs), have led to a variety of promising technologies for nanoelectronics, energy storage, and opto-electronics, to name a few. Alloying 2D TMDs is a promising avenue for band gap engineering. The amount of W content (x) in the Mo1-xWxS2 alloy is systemically controlled by the co-sputtering technique. The post-laser process allows layer-by-layer thinning of the Mo1-xWxS2 alloys down to a single-layer; such a layer exhibits tunable properties with the optical band gap ranging from 1.871 to 1.971 eV with the variation in the W content, x = 0 to 1. We also observe stable Li electrodeposition and the suppression of dendrite nucleation sites by 2D MoS2 coating on Li-metal. Our approach can lead to the realization of high energy density and safe Li-metal rechargeable batteries. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |