Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Decoupling the Effects of Ion Gating from Photoinduced Quasi-Fermi Level Splitting at Photoelectrochemical Interfaces.

ACS applied materials & interfaces·2026
Same author

Vibrational Spectroscopy of Ionic Liquids Electrochemically Intercalated into Multilayer Graphene.

ACS applied materials & interfaces·2026
Same author

Electronically Driven Combustion of Energetic Ionic Liquids in a Microcell Reactor.

ACS omega·2026
Same author

Plasma-enhanced electrostatic precipitation (PE-ESP) of restaurant smoke emissions.

Environmental science and pollution research international·2026
Same author

<i>In Situ</i> Electric-Field-Induced Second Harmonic Generation (EFISH) Spectroscopy of TiO<sub>2</sub>-Passivated p-GaAs Photoelectrodes.

The journal of physical chemistry letters·2025
Same author

Ionic Liquid-Based Gas Generators Using High Voltage Nanosecond Pulse Discharge.

ACS omega·2025

Related Experiment Video

Updated: Jun 10, 2026

Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
10:59

Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy

Published on: May 12, 2023

Plasmonic nanoparticle arrays with nanometer separation for high-performance SERS substrates.

Jesse Theiss1, Prathamesh Pavaskar, Pierre M Echternach

  • 1Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA.

Nano Letters
|August 12, 2010
PubMed
Summary

Researchers developed a novel angle evaporation technique to create nanoparticle arrays with 1 nm gaps. This method significantly enhances surface-enhanced Raman spectroscopy (SERS) signals, paving the way for advanced sensing applications.

More Related Videos

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
09:29

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates
11:44

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates

Published on: March 20, 2015

Related Experiment Videos

Last Updated: Jun 10, 2026

Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
10:59

Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy

Published on: May 12, 2023

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
09:29

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates
11:44

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates

Published on: March 20, 2015

Area of Science:

  • Nanotechnology and Materials Science
  • Spectroscopy and Sensing

Background:

  • Plasmonic nanoparticles exhibit unique optical properties.
  • Achieving precise nanoscale control over nanoparticle spacing is challenging.
  • Surface-enhanced Raman spectroscopy (SERS) requires specific nanostructures for signal amplification.

Purpose of the Study:

  • To demonstrate a new method for fabricating plasmonic nanoparticle arrays with sub-nanometer separations.
  • To investigate the plasmonic properties and SERS enhancement of these precisely spaced nanoparticles.
  • To validate the fabrication technique and simulation predictions.

Main Methods:

  • Angle evaporation technique for fabricating nanoparticle arrays on SiN membranes.
  • High-resolution transmission electron microscopy (HRTEM) for imaging nanoparticle separations.
  • Confocal micro-Raman spectroscopy for quantifying SERS enhancement.
  • Finite difference time domain (FDTD) simulations for predicting electric field intensities.

Main Results:

  • Successfully fabricated nanoparticle arrays with ~1 nm separations.
  • Observed significant SERS signal enhancement when laser polarization is parallel to nanoparticle pairs.
  • SERS enhancement factor of 10^9-10^10 predicted by simulations.
  • Electric field intensity enhancement of 82400 predicted at the nanoparticle gap.

Conclusions:

  • The angle evaporation technique is effective for creating nanoscale gaps between plasmonic nanoparticles.
  • Nanoparticle proximity and laser polarization are critical for maximizing SERS enhancement.
  • This work provides a foundation for developing highly sensitive SERS substrates.