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Capillary Origami with Atomically Thin Membranes

delete2019-08-20
delete42
PRE
AI
M
Michael Reynolds
K
Kathryn L. McGill
M
Maritha A. Wang
郜彗 cover
郜彗 (Hui Gao)
F
Fauzia Mujid
K
Kibum Kang
J
Jiwoong Park
M
Marc Z. Miskin *
I
Itai Cohen
P
Paul L. McEuen *
DOI:10.1021/acs.nanolett.9b02281delete
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Abstract

Abstract

En 中文
Small-scale optical and mechanical components and machines require control over three-dimensional structure at the microscale. Inspired by the analogy between paper and two-dimensional materials, origami-style folding of atomically thin materials offers a promising approach for making microscale structures from the thinnest possible sheets. In this Letter, we show that a monolayer of molybdenum disulfide (MoS2) can be folded into three-dimensional shapes by a technique called capillary origami, in which the surface tension of a droplet drives the folding of a thin sheet. We define shape nets by patterning rigid metal panels connected by MoS2 hinges, allowing us to fold micron-scale polyhedrons. Finally, we demonstrate that these shapes can be folded in parallel without the use of micropipettes or microfluidics by means of a microemulsion of droplets that dissolves into the bulk solution to drive folding. These results demonstrate controllable folding of the thinnest possible materials using capillary origami and indicate a route forward for design and parallel fabrication of more complex three-dimensional micron-scale structures and machines.
Keywords:
2D materials
origami
capillary
microstructures
MoS2
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Journal

Nano Letters cover
Nano Letters
IF:
9.1
Papers:
2.7W
Citations:
16.5W

Organization

U
university of chicago
Scholars:
4.4W
Papers: 3.7W
Citations: 80
C
Cornell University
Scholars:
6.3W
Papers: 5.4W
Citations: 10.9W