The paper art of origami has inspired several works in which two-dimensional materials are cut and folded into desired geometries at the micron scale. At this scale, surface energies can easily dominate over bending energies, allowing sheets to be folded with droplets, a technique known as capillary origami. In this talk, we show capillary origami of monolayer molybdenum disulfide (MoS2) using droplets in water. By adding rigid panels to the MoS2, we demonstrate controllable folding of polyhedra. Finally, we show that these shapes can be self-folded by using partially miscible droplets in water. These results provide a new approach for creating pre-patterned three-dimensional devices using two-dimensional materials.
*This work was supported by the Cornell Center for Materials Research with funding from the NSF MRSEC program (DMR-1719875), the Air Force Office of Scientific Research (MURI: FA9550-16-1-0031), and the Kavli Institute at Cornell for Nanoscale Science. This work was performed in part at the Cornell NanoScale Facility, a member of the National Nanotechnology Coordinated Infrastructure (NNCI), which is supported by the National Science Foundation (Grant NNCI-1542081).
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Presenters
Michael Reynolds
Department of Physics, LASSP, Cornell University
Authors
Michael Reynolds
Department of Physics, LASSP, Cornell University
Kathryn L McGill
Department of Physics, LASSP, Cornell University
Maritha Wang
Department of Chemistry, Institute for Molecular Engineering, and James Franck Institute, University of Chicago
Marc Miskin
Physics, Cornell University
Department of Physics, LASSP, Cornell University
Laboratory of Atomic and Solid State Physics, Cornell University
Hui Gao
Department of Chemistry and Chemical Biology, Cornell University
The University of Chicago
Fauzia Mujid
Department of Chemistry, Institute for Molecular Engineering, and James Franck Institute, University of Chicago
The University of Chicago
Kibum Kang
Department of Chemistry and Chemical Biology, Cornell University
Dept. of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)
Jiwoong Park
Department of Chemistry, Institute for Molecular Engineering, and James Franck Institute, University of Chicago
The University of Chicago
Itai Cohen
Department of Physics, Cornell University
Laboratory of Atomic and Solid State Physics, Cornell University
Physics, Cornell University
Department of Physics, LASSP, Cornell University
Physics Department, Cornell University
Cornell University
Paul L McEuen
Laboratory of Atomic and Solid State Physics, Cornell University
