ArticleNanomaterials (Basel, Switzerland)2020
Supported Ultra-Thin Alumina Membranes with Graphene as Efficient Interference Enhanced Raman Scattering Platforms for Sensing.
Article in Nanomaterials (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 10 citations in OpenAlex.
- Recent Progress in the Fabrication and Optical Properties of Nanoporous Anodic Alumina.Nanomaterials (Basel, Switzerland) · 2022Review
- Editorial for the Special Issue on "10th Anniversary of Nanomaterials-Recent Advances in Nanocomposite Thin Films and 2D Materials".Nanomaterials (Basel, Switzerland) · 2021Article
- Raman and Fluorescence Enhancement Approaches in Graphene-Based Platforms for Optical Sensing and Imaging.Nanomaterials (Basel, Switzerland) · 2021Review
- Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications.Nanomaterials (Basel, Switzerland) · 2021Review
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
The detection of Raman signals from diluted molecules or biomaterials in complex media is still a challenge. Besides the widely studied Raman enhancement by nanoparticle plasmons, interference mechanisms provide an interesting option. A novel approach for amplification platforms based on supported thin alumina membranes was designed and fabricated to optimize the interference processes. The dielectric layer is the extremely thin alumina membrane itself and, its metallic aluminum support, the reflecting medium. A CVD (chemical vapor deposition) single-layer graphene is transferred on the membrane to serve as substrate to deposit the analyte. Experimental results and simulations of the interference processes were employed to determine the relevant parameters of the structure to optimize the Raman enhancement factor (E.F.). Highly homogeneous E.F. over the platform surface are obtained, typically 370 ± (5%), for membranes with ~100 nm pore depth, ~18 nm pore diameter and the complete elimination of the Al
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