ArticleMaterials (Basel, Switzerland)2018
Al/Si Nanopillars as Very Sensitive SERS Substrates.
Article in Materials (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Latest Novelties on Plasmonic and Non-Plasmonic Nanomaterials for SERS Sensing.Nanomaterials (Basel, Switzerland) · 2020Review
- Article
- Hybrid Au/Si Disk-Shaped Nanoresonators on Gold Film for Amplified SERS Chemical Sensing.Nanomaterials (Basel, Switzerland) · 2019Article
- Plasmonics and its Applications.Materials (Basel, Switzerland) · 2019Article
- Light Concentration by Metal-Dielectric Micro-Resonators for SERS Sensing.Materials (Basel, Switzerland) · 2018Review
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this paper, we present a fast fabrication of Al/Si nanopillars for an ultrasensitive SERS detection of chemical molecules. The fabrication process is only composed of two steps: use of a native oxide layer as a physical etch mask followed by evaporation of an aluminum layer. A random arrangement of well-defined Al/Si nanopillars is obtained on a large-area wafer of Si. A good uniformity of SERS signal is achieved on the whole wafer. Finally, we investigated experimentally the sensitivity of these Al/Si nanopillars for SERS sensing, and analytical enhancement factors in the range of 1.5 × 10 7 - 2.5 × 10 7 were found for the detection of thiophenol molecules. Additionally, 3D FDTD simulations were used to better understand optical properties of Al/Si nanopillars as well as the Raman enhancement.
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