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Gold Nanoparticles Deposited on a Conical Anodic Aluminum Oxide Substrate for Improved Surface-Enhanced Raman Scattering
- Issue Date
- Dec-2021
- Publisher
- American Chemical Society
- Keywords
- anodic aluminum oxide (AAO) template; finite-difference time-domain (FDTD) method; gold nanoparticles; plasmonic nanoparticle; Raman spectroscopy; surface-enhanced raman scattering (SERS)
- Citation
- ACS Applied Nano Materials, v.4, no.12, pp.12905 - 12912
- Journal Title
- ACS Applied Nano Materials
- Volume
- 4
- Number
- 12
- Start Page
- 12905
- End Page
- 12912
- ISSN
- 2574-0970
- Abstract
- In this study, a highly ordered gold nanoparticle (AuNP) monomer array based on a gold-coated conical anodic aluminum oxide (AAO) template was fabricated to produce a ring-shaped hot line between the gold layer and AuNPs instead of the existing hot spot between the metal nanoparticles. The surface-enhanced Raman scattering signal of the synthesized nanostructured template was 80 times higher than that of a flat gold surface and 3.7 times higher than that of ordered AuNP monomers arranged by the conical AAO template. The template was also fabricated based on a wet chemistry process, which allows for considerably easier and quicker production of large-area templates. © 2021 American Chemical Society.
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Related Researcher
- Son, Sang Jun
- BioNano Technology (Department of Chemistry)