| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
2D Materials: Preparation, Properties, Modeling & Applications
|
| Presentation Title |
Processing Approaches for the Efficient Liquid Exfoliation of Graphene Transport Enhancement between Subsequent Flakes |
| Author(s) |
Konstantinos Sierros, Harrison Loh |
| On-Site Speaker (Planned) |
Konstantinos Sierros |
| Abstract Scope |
The production of graphene from graphite is a long-lasting scientific challenge, hindering the use of the material in emerging applications. Particularly, the isolation of graphene flakes from either raw graphite or waste/excess biomass is attractive given the abundance of natural graphite and the appeal of up-valuing sustainable precursor sources. The use of liquid exfoliation (shear mixing or sonication) has been the primary means of extracting graphene from these precursors. However, this approach has disadvantages such as incomplete & inefficient exfoliation requiring centrifuge post-processing to isolate the thinnest flakes. Liquid exfoliation also produces flakes of small sizes, reducing the effectiveness of their use in devices larger than the particle due to junction tunneling resistance between the flakes. In this talk we will discuss our group's work and current advances in high-quality graphene flake isolation through liquid exfoliation processes along with strategies for bridging flakes and tailoring transport throughout deposited flake networks. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Extraction and Processing, Characterization, Sustainability |