Invited Presentation
AWARDS
Jean-François Masson, PhD
Professor
Université de Montréal
Montreal, Quebec, Canada
Hannah Williams
Université de Montréal
Montreal, Quebec, Canada
This presentation will focus on efforts to improve the analytical sensitivity of SERS using several photonic effects and material science strategies to assemble nanomaterials into high sensitivity plasmonic devices. Specifically, the use of block copolymer templating nanoparticle on glass surface has led to increased SERS and plasmonic response. Using this strategy, a PS-b-P4VP polymer is suited for the deposition of a dense and well-dispersed array of gold and silver nanoparticles on glass surfaces. This strategy works well on any forms of glass surfaces, including highly curved ones such as nanoneedles and microbeads. The advantages of using curved surfaces will be mainly exposed with optical fibers, nanofibers, and glass microbeads to improve SERS sensing and photocatalysis. The curved surface acts as a lens and a resonator that provides further enhancement compared to the flat arrays of otherwise identical particles. This optoplasmonic phenomenon thus improves sensitivity of analytical devices, which will be demonstrated through a series of examples. Finally, the concept of self-driving labs will be exposed for SERS measurements.