Ultrathin thermoresponsive self-folding 3D graphene
Name
e1701084.full.pdf
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2.98 MB
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Checksum (MD5)
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Author(s)
Xu, Weinan
Kwag, Hye Rin
Ma, Qinli
Sarkar, Anjishnu
Gracias, David H.
Qin, Zhao
Chen, Chun-Teh
Buehler, Markus J
Date Issued
October 2017
Journal
Science Advances
Publisher
American Association for the Advancement of Science (AAAS)
Citation
Xu, Weinan, Zhao Qin, Chun-Teh Chen, Hye Rin Kwag, Qinli Ma, Anjishnu Sarkar, Markus J. Buehler, and David H. Gracias. “Ultrathin Thermoresponsive Self-Folding 3D Graphene.” Science Advances, vol. 3, no. 10, Oct. 2017, p. e1701084. © 2017 The Authors.
Version
Final published version
Abstract
Graphene and other two-dimensional materials have unique physical and chemical properties of broad relevance. It has been suggested that the transformation of these atomically planar materials to three-dimensional (3D) geometries by bending, wrinkling, or folding could significantly alter their properties and lead to novel structures and devices with compact form factors, but strategies to enable this shape change remain limited. We report a benign thermally responsive method to fold and unfold monolayer graphene into predesigned, ordered 3D structures. The methodology involves the surface functionalization of monolayer graphene using ultrathin noncovalently bonded mussel-inspired polydopamine and thermoresponsive poly(N-isopropylacrylamide) brushes. The functionalized graphene is micropatterned and self-folds into ordered 3D structures with reversible deformation under a full control by temperature. The structures are characterized using spectroscopy and microscopy, and self-folding is rationalized using a multiscale molecular dynamics model. Our work demonstrates the potential to design and fabricate ordered 3D graphene structures with predictable shape and dynamics. We highlight applicability by encapsulating live cells and creating nonlinear resistor and creased transistor devices.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Terms of Use
Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
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DOI of Published Version
https://doi.org/10.1126/SCIADV.1701084
