Journal
NANOSCALE
Volume 7, Issue 35, Pages 14561-14576Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr03458b
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Funding
- Chinese Government
- Chinese MOE NCET Program
- Natural Science Foundation of China [51322204]
- Fundamental Research Funds for the Central Universities [WK2060140014, WK2060140017]
- External Cooperation Program of BIC, Chinese Academy of Sciences [211134KYSB20130017]
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Graphene, a one-atomic-layer-thick planar sheet of sp2-bonded carbon configured in a two-dimensional hexagonal lattice, has attracted considerable research interest with regard to sensing-related applications owing to its extraordinary electronic, optical, chemical, and mechanical properties. Graphene plasmonics may be excited in the mid-infrared-to-terahertz regions with high spatial confinement, low loss, and excellent tunability. Meanwhile, graphene can be utilized to tune the plasmonic properties of conventional metallic nanostructures in the visible and near-infrared regions, allowing it to act as a versatile component in various plasmonic applications. This article reviews the recent progress in graphene-based hybrid films used for plasmonic sensing and detection. We particularly emphasize on the unique roles and advantages of graphene in surface-enhanced Raman scattering (SERS) for bare graphene or graphenemetal hybrid films, and plasmonic refractive index (RI) sensing for graphene-metal or graphene-insulator hybrids, among other plasmonic sensing applications. The preparation of graphene-based hybrid films, their functionalization and signal detection techniques are also reviewed. Finally, the perspectives and current challenges in the use of graphene-based hybrid films for plasmonic sensing are outlined.
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