Abstract
Gold nanostructures have very suitable physical properties for plasmonic applications but do not stick on glass substrates. One usually uses a chromium adhesion layer that gives good mechanical adhesion but quench the plasmon. We developed a new adhesion process that permits a covalent bonding between gold and glass thanks to an MPTMS molecular layer throughout nanolithography process. We demonstrate that this new adhesion layer allows an improvement of the optical properties of the gold nanoparticles as well as an essential improvement of their surface-enhanced Raman scattering performances.
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Acknowledgments
This work has been funded by the Discomar French project (Agence Nationale de la Recherche—grant no. 07-P2IC-002), the Nanoantenna European project (FP7-Health-F5-2009-241818) and the Conseil Régional de Champagne-Ardenne.
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Lamy de la Chapelle, M., Shen, H., Guillot, N. et al. New Gold Nanoparticles Adhesion Process Opening the Way of Improved and Highly Sensitive Plasmonics Technologies. Plasmonics 8, 411–415 (2013). https://doi.org/10.1007/s11468-012-9405-x
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DOI: https://doi.org/10.1007/s11468-012-9405-x
Keywords
- Electron beam lithography (EBL)
- Gold nanoparticles
- Adhesive layers
- Localized surface plasmons (LSP)
- Surface-enhanced Raman scattering (SERS)