Ultrathin thermoresponsive self-folding 3D graphene
Author(s)
Xu, Weinan; Kwag, Hye Rin; Ma, Qinli; Sarkar, Anjishnu; Gracias, David H.; Qin, Zhao; Chen, Chun-Teh; Buehler, Markus J; ... Show more Show less
Downloade1701084.full.pdf (2.975Mb)
PUBLISHER_CC
Publisher with Creative Commons License
Creative Commons Attribution
Terms of use
Metadata
Show full item recordAbstract
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.
Date issued
2017-10Department
Massachusetts Institute of Technology. Department of Civil and Environmental EngineeringJournal
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
ISSN
2375-2548