Fluidic Flow Assisted Deterministic Folding of Van der Waals Materials
[1];
[1]
- Univ. of Southern California, Los Angeles, CA (United States)
- Zhejiang Univ. of Technology Hangzhou (People's Republic of China)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Center for Integrated Nanotechnologies (CINT)
Origami offers a distinct approach for designing and engineering new material structures and properties. The folding and stacking of atomically thin van der Waals (vdW) materials, for example, can lead to intriguing new physical properties including bandgap tuning, Van Hove singularity, and superconductivity. On the other hand, achieving well-controlled folding of vdW materials with high spatial precision has been extremely challenging and difficult to scale toward large areas. In this paper, a deterministic technique is reported to fold vdW materials at a defined position and direction using microfluidic forces. Electron beam lithography (EBL) is utilized to define the folding area, which allows precise control of the folding geometry, direction, and position beyond 100 nm resolution. Using this technique, single-atomic-layer vdW materials or their heterostructures can be folded without the need for any external supporting layers in the final folded structure. In addition, arrays of patterns can be folded across a large area using this technique and electronic devices that can reconfigure device functionalities through folding are also demonstrated. Such scalable formation of folded vdW material structures with high precision can lead to the creation of new atomic-scale materials and superlattices as well as opening the door to realizing foldable and reconfigurable electronics.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA); US Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF)
- Grant/Contract Number:
- AC04-94AL85000; FA9550-15-1-0514; 0939514; SC0014607; NA0003525
- OSTI ID:
- 1607502
- Alternate ID(s):
- OSTI ID: 1599660
- Report Number(s):
- SAND-2020-0594J; 682943
- Journal Information:
- Advanced Functional Materials, Vol. 30, Issue 13; ISSN 1616-301X
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Similar Records
Moiré engineering in van der Waals heterostructures
Planar tunneling spectroscopy on van der Waals superconductors with AlOx junction grown by atomic layer deposition