Self-folding graphene-polymer bilayers
- Institute of Microelectronics, Tsinghua University, Beijing 100084 (China)
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218 (United States)
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218 (United States)
- Department of Physics, Johns Hopkins University, Baltimore, Maryland 21218 (United States)
In order to incorporate the extraordinary intrinsic thermal, electrical, mechanical, and optical properties of graphene with three dimensional (3D) flexible substrates, we introduce a solvent-driven self-folding approach using graphene-polymer bilayers. A polymer (SU-8) film was spin coated atop chemically vapor deposited graphene films on wafer substrates and graphene-polymer bilayers were patterned with or without metal electrodes using photolithography, thin film deposition, and etching. After patterning, the bilayers were released from the substrates and they self-folded to form fully integrated, curved, and folded structures. In contrast to planar graphene sensors on rigid substrates, we assembled curved and folded sensors that are flexible and they feature smaller form factors due to their 3D geometry and large surface areas due to their multiple rolled architectures. We believe that this approach could be used to assemble a range of high performance 3D electronic and optical devices of relevance to sensing, diagnostics, wearables, and energy harvesting.
- OSTI ID:
- 22402471
- Journal Information:
- Applied Physics Letters, Vol. 106, Issue 20; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DEPOSITION
ELECTRICAL PROPERTIES
ELECTRODES
ELECTRONIC EQUIPMENT
ETCHING
FORM FACTORS
GRAPHENE
LAYERS
MECHANICAL PROPERTIES
METALS
OPTICAL PROPERTIES
POLYMERS
SENSORS
SUBSTRATES
THIN FILMS
VAPOR DEPOSITED COATINGS