Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 4, Issue 8, Pages 1347-1351Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jz400644c
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Funding
- Office of Naval Research MURI Program [N00014-11-1-0690]
- National Science Foundation
- NSF-NSEC
- NSF-MRSEC
- Keck Foundation
- State of Illinois
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1121262] Funding Source: National Science Foundation
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The ability to print high conductivity, conformal, and flexible electrodes is an important technological challenge in printed electronics, especially for large-area formats with low cost considerations. In this Letter, we demonstrate inkjet-printed, high conductivity graphene patterns that are suitable for flexible electronics. The ink is prepared by solution-phase exfoliation of graphene using an environmentally benign solvent, ethanol, and a stabilizing polymer, ethyl cellulose. The inkjet-printed graphene features attain low resistivity of 4 m Omega.cm after a thermal anneal at 250 degrees C for 30 mm while showing uniform morphology, compatibility with flexible substrates, and excellent tolerance to bending stresses.
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