| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances and Discoveries in Non-equilibrium Driven Nanomaterials and Thin Films
|
| Presentation Title |
Salt-assisted Chemical Vapor Deposition Synthesis of 2D WSe2 and Its Integration in High Performance Field-effect Transistors |
| Author(s) |
Anupama Kaul, Avra S Bandyopadhyay |
| On-Site Speaker (Planned) |
Anupama Kaul |
| Abstract Scope |
Two-dimensional (2D) layered materials range in composition from mono-elemental systems such as graphene and black phosphorus, binary transition-metal dichalcogenides (TMDCs) such as WSe2, as well as multi-component organo-halide perovskites. Despite the varying compositions, their unifying feature arises from the weak van der Waals (vdW) interaction that serves as the glue between adjacent layers. The excitonic and multibody interactions in some semiconducting 2D vdW crystallites, their strain-dependent properties and pristine atomically flat interfaces, coupled with the ability to solution-process these materials, offer a rich playground to unveil fundamental physical mechanisms for exciting and innovative devices. I will discuss our efforts in the halide-assisted- (HA-) low-pressure- (LP-) chemical vapor deposition (CVD) synthesis of monolayer (1L) WSe2 on SiO2/Si and sapphire substrates, respectively. The temperature-dependent photoluminescence spectra from 1L WSe2 validated the presence of exciton and trion emission peaks, with the former evident even at room T due to their large binding energies. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nanotechnology, Electronic Materials, Thin Films and Interfaces |