| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Printed Electronics and Additive Manufacturing: Advanced Functional Materials, Processing Concepts, and Emerging Applications
|
| Presentation Title |
Probing Inter- and Intra-flake Contributions to Reduced Electrical Properties in Percolated Flake Networks |
| Author(s) |
Harrison Loh, Alan Bristow, Konstantinos Sierros |
| On-Site Speaker (Planned) |
Harrison Loh |
| Abstract Scope |
Top-down exfoliation of 2D nanomaterials, such as by liquid exfoliation, is one approach for synthesizing flakes suitable as additives in inks for various solution printing methods. A limitation with using these materials for films and coatings is the reduced electrical properties of these networks compared to their bottom-up, grown film counterparts. This is due to contributions from both inter-flake resistance, relating to carrier transport between flakes, and intra-flake resistance present in the material. In this talk, strategies and experimental work aimed at modifying and characterizing these inter and intra flake resistance components are presented. In this work, exfoliated graphene flakes are chosen as a model system, with the overall electrical conductivity as the property to optimize. Processing approaches for enhancing the interfacial charge transport and the impact of flake chemistry on the material electrical properties are studied, with expectations that such strategies may find viability in other 2D material systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Electronic Materials, Thin Films and Interfaces |