Quantum Nature of Charge Transport in Inkjet-Printed Graphene Revealed in High Magnetic Fields up to 60T

Cottam, Nathan D.; Wang, Feiran; Austin, Jonathan S.; Tuck, Christopher J.; Hague, Richard; Fromhold, Mark; Escoffier, Walter; Goiran, Michel; Pierre, Mathieu; Makarovsky, Oleg; Turyanska, Lyudmila

Abstract

Inkjet‐printing of graphene, iGr, provides an alternative route for the fabrication of highly conductive and flexible graphene films for use in devices. However, the contribution of quantum phenomena associated with 2D single layer graphene, SLG, to the charge transport in iGr is yet to be explored. Here, the first magneto‐transport study of iGr in high magnetic fields up to 60 T is presented. The observed quantum phenomena, such as weak localization and negative magnetoresistance, are strongly affected by the thickness of the iGr film and can be explained by a combination of intra‐ and inter‐flake classical and quantum charge transport. The quantum nature of carrier transport in iGr is revealed using temperature, electric field, and magnetic field dependences of the iGr conductivity. These results are relevant for the exploitation of inkjet deposition of graphene, which is of particular interest for additive manufacturing and 3D printing of flexible and wearable electronics. It is shown that printed nanostructures enable ensemble averaging of quantum interference phenomena within a single device, thereby facilitating comparison between experiment and underlying statistical models of electron transport.

Citation

Cottam, N. D., Wang, F., Austin, J. S., Tuck, C. J., Hague, R., Fromhold, M., Escoffier, W., Goiran, M., Pierre, M., Makarovsky, O., & Turyanska, L. (2024). Quantum Nature of Charge Transport in Inkjet-Printed Graphene Revealed in High Magnetic Fields up to 60T. Small, 20(30), Article 2311416. https://doi.org/10.1002/smll.202311416

• Journal Article Type: Article
• Acceptance Date: Feb 16, 2024
• Online Publication Date: Feb 27, 2024
• Publication Date: Jul 25, 2024
• Deposit Date: Feb 20, 2024
• Publicly Available Date: Mar 5, 2024
• Journal: Small
• Print ISSN: 1613-6810
• Electronic ISSN: 1613-6829
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 20
• Issue: 30
• Article Number: 2311416
• DOI: https://doi.org/10.1002/smll.202311416
• Keywords: jet printed graphene; high magnetic field; weak localisation; Landau levels
• Public URL: https://nottingham-repository.worktribe.com/output/31609984
• Publisher URL: https://onlinelibrary.wiley.com/doi/10.1002/smll.202311416
• Additional Information: Received: 2023-12-07; Published: 2024-02-27