Direct‐Write Printed Contacts to Layered and 2D Materials
Abstract Advancements in fabrication methods have shaped new computing device technologies. Among these methods, depositing electrical contacts to the channel material is fundamental to device characterization. Novel layered and 2D materials are promising for next‐generation computing electronic channel materials. Direct‐write printing of conductive inks is introduced as a surprisingly effective, significantly faster, and cleaner method to contact different classes of layered materials, including graphene (semi‐metal), MoS 2 (semiconductor), Bi‐2212 (superconductor), and Fe 5 GeTe 2 (metallic ferromagnet). Based on the electrical response, the quality of the printed contacts is comparable to what is achievable with resist‐based lithography techniques. These devices are tested by sweeping gate voltage, temperature, and magnetic field to show that the materials remain pristine post‐processing. This work demonstrates that direct‐write printing is an agile method for prototyping and characterizing the electrical properties of novel layered materials.
Authors
- Genda Gu (ORCID: https://orcid.org/0000-0002-9886-3255)
- V. A. Kulichenko (ORCID: https://orcid.org/0000-0001-8427-6167)
- Samuel W. LaGasse (ORCID: https://orcid.org/0000-0001-8739-9621)
- Son Thanh Le (ORCID: https://orcid.org/0000-0002-4208-0833)
- Eunha Lee (ORCID: https://orcid.org/0000-0001-5950-253X)
- Aubrey T. Hanbicki (ORCID: https://orcid.org/0000-0001-8200-0378)
- Edwin Quinn
- Adam L. Friedman (ORCID: https://orcid.org/0000-0003-0597-5432)
- Sharadh Jois (ORCID: https://orcid.org/0000-0001-6598-2437)
- Tsegereda Kedir Esatu (ORCID: https://orcid.org/0000-0003-0933-7163)
- Luis Balicas (ORCID: https://orcid.org/0000-0002-5209-0293)
- Hui Li (ORCID: https://orcid.org/0000-0001-9355-1116)
- Jason W. Fleischer (ORCID: https://orcid.org/0000-0003-2453-2581)
Institutions
- Florida State University (US)
- Brookhaven National Laboratory (US)
- Physical Sciences (United States) (US)
- National High Magnetic Field Laboratory (US)
- Stony Brook University (US)
Publication Details
- Journal
- Advanced Electronic Materials
- Published
- 2025-07-18
- DOI
- https://doi.org/10.1002/aelm.202400927
- Citations
- 2
- Primary Topic
- Graphene research and applications
- Type
- article
- Field-Weighted Citation Impact
- 1.04
Funders
- National Science Foundation
- U.S. Department of Energy
- National High Magnetic Field Laboratory
- Office of Naval Research
- Division of Materials Research
- Basic Energy Sciences
- High Magnetic Field Laboratory, Chinese Academy of Sciences