| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Printed Electronics and Additive Manufacturing: Advanced Functional Materials, Processing Concepts, and Emerging Applications
|
| Presentation Title |
Electrical Conductivity-morphology Relationships of Liquid-exfoliated Graphite |
| Author(s) |
Harrison Loh, Alan Bristow, Konstantinos Sierros |
| On-Site Speaker (Planned) |
Harrison Loh |
| Abstract Scope |
Liquid exfoliation (LPE) of bulk layered crystals like graphite is a popular approach for obtaining 2D nanoflakes. Nanoflakes are desirable for their compatibility with printing techniques such as direct ink writing and incorporation into composites for enhanced functionality. Many applications for graphene-based nanoflakes are centered around the electrical conductivity; hence, it is important to understand the impact of exfoliation on the charge-carrier transport properties. To date, few studies have focused on the relationship between exfoliation processes, flake morphology, and electrical properties. In this talk, LPE graphite films are created and characterized for morphology by imaging methods and Raman spectroscopy. These results are correlated with charge-carrier transport properties determined by terahertz time-domain spectroscopy. It is found that flake area and thickness modify the carrier concentration and carrier mobility. Therefore, LPE methods affect the resulting morphology and the electrical conductivity and should be considered when tailoring ink components for their conduction properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electronic Materials, Thin Films and Interfaces, |