Fabrication and Simulation of Broadband Surface-Enhanced Raman Spectroscopy (SERS) Based on Disordered Nanoplasmonics

Supitsara Patpong; Panuwat Pengphorm; Sirawit Boonsit; Pruet Kalsuwan; Nonthanan Sitpathom; Chalongrat Daengngam

doi:10.4028/p-IB0gn7

Paper Titles

Gold Microplates with Nano-through-Holes for Nano-Raman Analysis of Solid Surface
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Fabrication and Simulation of Broadband Surface-Enhanced Raman Spectroscopy (SERS) Based on Disordered Nanoplasmonics
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Novel Multi-Spacer Hk/Mg 28 nm Planar MOSFET for Superior Subthreshold Swing and DIBL Optimization: Simulation Design and Process Investigation
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HomeJournal of Nano ResearchJournal of Nano Research Vol. 89Fabrication and Simulation of Broadband...

Fabrication and Simulation of Broadband Surface-Enhanced Raman Spectroscopy (SERS) Based on Disordered Nanoplasmonics

Abstract:

This study investigates the broadband plasmonic resonance properties of gold-based surface-enhanced Raman spectroscopy (SERS) substrates with stochastically disordered nanostructures. We fabricated a nanotextured template topped with sputtered gold. Field emission scanning electron microscopy (FE-SEM) analysis showed random gold nanoclusters with different densities, sizes, and orientations. Simulation results indicated a large number of electromagnetic (EM) modes, including first- and second-generation hotspots as well as touching point geometries that provide a large enhancement factor. With any given excitation wavelength, such disordered SERS structures can provide some mode configurations that resonance, resulting in broadband response. SERS simulations showed considerable electric field intensification across a wide range of wavelengths (600–1600 nm) and provided a relatively uniform SERS response with an areal-averaged enhancement factor ~10⁵ across a broad visible to near-infrared range.

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Periodical:

Journal of Nano Research (Volume 89)

Pages:

9-14

DOI:

https://doi.org/10.4028/p-IB0gn7

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Online since:

October 2025

Authors:

Supitsara Patpong, Panuwat Pengphorm, Sirawit Boonsit, Pruet Kalsuwan, Nonthanan Sitpathom, Chalongrat Daengngam*

Keywords:

Broadband Plasmonic Resonance, Disordered Nanoplasmonics, Localized Surface Plasmon Resonance (LSPR), Surface Enhance Raman Spectroscopy (SERS)

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