Metallic Nanoislands on Graphene as Highly Sensitive Transducers of Mechanical, Biological, and Optical Signals.

Published

Journal Article

This article describes an effect based on the wetting transparency of graphene; the morphology of a metallic film (≤20 nm) when deposited on graphene by evaporation depends strongly on the identity of the substrate supporting the graphene. This control permits the formation of a range of geometries, such as tightly packed nanospheres, nanocrystals, and island-like formations with controllable gaps down to 3 nm. These graphene-supported structures can be transferred to any surface and function as ultrasensitive mechanical signal transducers with high sensitivity and range (at least 4 orders of magnitude of strain) for applications in structural health monitoring, electronic skin, measurement of the contractions of cardiomyocytes, and substrates for surface-enhanced Raman scattering (SERS, including on the tips of optical fibers). These composite films can thus be treated as a platform technology for multimodal sensing. Moreover, they are low profile, mechanically robust, semitransparent and have the potential for reproducible manufacturing over large areas.

Full Text

Duke Authors

Cited Authors

  • Zaretski, AV; Root, SE; Savchenko, A; Molokanova, E; Printz, AD; Jibril, L; Arya, G; Mercola, M; Lipomi, DJ

Published Date

  • February 2016

Published In

Volume / Issue

  • 16 / 2

Start / End Page

  • 1375 - 1380

PubMed ID

  • 26765039

Pubmed Central ID

  • 26765039

Electronic International Standard Serial Number (EISSN)

  • 1530-6992

International Standard Serial Number (ISSN)

  • 1530-6984

Digital Object Identifier (DOI)

  • 10.1021/acs.nanolett.5b04821

Language

  • eng