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Related Experiment Video

Updated: Apr 19, 2026

Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography
08:21

Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography

Published on: September 2, 2017

7.7K

Self-aligned colloidal lithography for controllable and tuneable plasmonic nanogaps.

Tao Ding1, Lars O Herrmann, Bart de Nijs

  • 1NanoPhotonics Centre, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK; Department of Materials Science and Metallurgy, 27 Charles Babbage Road, University of Cambridge, CB3 0FS, UK.

Small (Weinheim an Der Bergstrasse, Germany)
|December 16, 2014
PubMed
Summary
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Chemical communications (Cambridge, England)·2026

Gold nanoparticles create tunable gaps on a substrate, forming a clean cavity. This advanced surface-enhanced Raman spectroscopy (SERS) platform enables sensitive detection of trace molecules.

Area of Science:

  • Nanotechnology
  • Materials Science
  • Spectroscopy

Background:

  • Gold nanoparticles (Au NPs) are utilized as colloidal shadow masks for creating nanostructures.
  • Precise control over nanoscale features is crucial for advanced material applications.

Purpose of the Study:

  • To develop a tunable SERS platform using patterned Au NPs.
  • To investigate the relationship between nanoparticle gap size and plasmonic coupling.

Main Methods:

  • Fabrication of Au NPs on a substrate using e-beam evaporation.
  • Controlled deposition of gold to tune nanogap dimensions.
  • Characterization of the nanostructure and its optical properties.

Main Results:

  • Ring-shaped Au NPs were successfully fabricated, acting as shadow masks.
Keywords:
SERScolloidal lithographyebeam evaporationgold filmsnanoparticles

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Related Experiment Videos

Last Updated: Apr 19, 2026

Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography
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Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography

Published on: September 2, 2017

7.7K
Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
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Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

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Fabricating Nanogaps by Nanoskiving
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Fabricating Nanogaps by Nanoskiving

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  • Nanometer-sized gaps were precisely controlled by adjusting gold deposition thickness.
  • Tunable plasmonic coupling was achieved between NPs and the substrate.
  • The resulting cavity demonstrated potential as a SERS platform.

    • Conclusions:

    • The study presents a novel method for creating tunable nanogap structures using Au NPs.
    • The fabricated platform shows significant promise for highly sensitive trace molecule detection via SERS.