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Related Experiment Video

Updated: May 30, 2026

Fabrication of polydimethylsiloxane (PDMS)-Based Flexible Surface-Enhanced Raman Scattering (SERS) Substrate for Ultrasensitive Detection

Fabrication of polydimethylsiloxane (PDMS)-Based Flexible Surface-Enhanced Raman Scattering (SERS) Substrate for Ultrasensitive Detection

Published on: November 17, 2023

Highly effective SERS substrates based on an atomic-layer-deposition-tailored nanorod array scaffold.

Monan Liu¹, Li Sun, Chuanwei Cheng

¹Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore.

|August 16, 2011

Summary

Researchers created 3D plasmonic substrates with nanogaps using atomic layer deposition and capillary effects. These substrates significantly enhance optical fields for surface-enhanced Raman scattering (SERS) applications.

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Last Updated: May 30, 2026

Fabrication of polydimethylsiloxane (PDMS)-Based Flexible Surface-Enhanced Raman Scattering (SERS) Substrate for Ultrasensitive Detection

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Published on: November 17, 2023

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A Technique to Functionalize and Self-assemble Macroscopic Nanoparticle-ligand Monolayer Films onto Template-free Substrates

A Technique to Functionalize and Self-assemble Macroscopic Nanoparticle-ligand Monolayer Films onto Template-free Substrates

Published on: May 9, 2014

Area of Science:

Nanotechnology
Plasmonics
Surface Science

Background:

Metallic nanogaps boost local optical fields.
Plasmonic excitation is key for enhanced light-matter interactions.

Purpose of the Study:

Fabricate 3D plasmonic substrates with controllable nanogaps.
Achieve significant local optical field enhancement for SERS.

Main Methods:

Utilized atomic layer deposition (ALD) and capillary effects.
Constructed 3D plasmonic substrates on aligned ZnO nanorods.
Engineered nanogaps with varying widths and profiles.

Main Results:

Achieved nanogaps with tunable dimensions.
Demonstrated substantial local field enhancement up to 2.64 × 10^6.
Successfully applied substrates for surface-enhanced Raman scattering (SERS).

Conclusions:

The developed method effectively creates 3D plasmonic nanogaps.
The substrates offer significant potential for ultrasensitive SERS detection.
ALD and capillary effects provide a versatile approach for nanoplasmonic device fabrication.