JOURNAL ARTICLE

Net-like Assembly of Au Nanoparticles as a Highly Active Substrate for Surface-Enhanced Raman and Infrared Spectroscopy

Abstract

Anodic aluminum oxide (AAO) templates were employed to filtrate and assemble Au nanoparticles by the pressure difference method. It was found that the colloidal Au nanoparticles can be uniformly arranged as nanonet assembly on the AAO surface. The net-assembled Au nanoparticles are clean and closely packed with nanochains. Taking fullerene C<sub>60</sub>/C<sub>70</sub> as probe molecules, high-quality surface-enhanced Raman scattering (SERS) spectra were observed. The net-assembled Au nanoparticles even synchronously support the observation of surface-enhanced infrared absorption (SEIRA) spectra of the fullerene C<sub>60</sub>/C<sub>70</sub>. These results indicate that the AAO template filtrated with net-assembled Au nanoparticles is a highly active substrate for surface-enhanced spectroscopy.

Keywords:
Nanoparticle Raman spectroscopy Substrate (aquarium) Raman scattering Fullerene Infrared spectroscopy Infrared Absorption spectroscopy Colloid

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Topics

Gold and Silver Nanoparticles Synthesis and Applications
Physical Sciences →  Materials Science →  Electronic, Optical and Magnetic Materials
Nanopore and Nanochannel Transport Studies
Physical Sciences →  Engineering →  Biomedical Engineering
Anodic Oxide Films and Nanostructures
Physical Sciences →  Materials Science →  Materials Chemistry
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