Plasmonic Au Nanoparticle Arrays for Monitoring Photopolymerization at the Nanoscale

Amine Khitous, Ching Fu Lin, Farid Kameche, Hsiao Wen Zan, Jean Pierre Malval, Dominique Berling, Olivier Soppera*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The localized surface plasmon resonance (LSPR) of Au nanoparticles (NPs) was used to monitor photopolymerization at the nanoscale by in situ monitoring the optical response of AuNPs during the light-induced polymerization process. To show the interest of this approach, two configurations were used, which correspond to a resonant and a nonresonant excitation regime between the photopolymer and the AuNPs used as nanoprobes. We show that not only this method enables the progress monitoring of the photopolymerization reaction at the nanometric scale but also can highlight the near-field coupling effect responsible for the acceleration of the photoinduced reaction. This methodology appears very interesting to study the photoinduced nanofabrication processes of metal/polymer hybrid nanoparticles and more globally to study the photopolymerization reactions at the nanometric scale.

Original languageEnglish
Pages (from-to)8770-8780
Number of pages11
JournalACS Applied Nano Materials
Volume4
Issue number9
DOIs
StatePublished - 24 Sep 2021

Keywords

  • free-radical photopolymerization
  • gold nanoparticles
  • hybrid nanoparticles
  • optical near-field radical photopolymerization
  • plasmonic nanosensors

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