2025 SMSI Bannerklein

OT5.239 - Benchmarking the Gas Sensitivity of LSPR Sensors With a New Parameter

Event
EUROSENSORS XXXVI
2024-09-01 - 2024-09-04
Debrecen (Hungary)
Band
Lectures
Chapter
OT5 - Chemical Sensors
Author(s)
A. Bonyár - Wigner Research Centre for Physics, Budapest (Hungary)
Pages
137 - 138
DOI
10.5162/EUROSENSORSXXXVI/OT5.239
ISBN
978-3-910600-03-4
Price
free

Abstract

A new parameter is introduced to benchmark the gas sensitivity of plasmonic sensors. This parameter takes into account both the surface sensitivity and the plasmon decay of the used nanoparticles and considers adsorbed gas layers on the sensor surface. Its applicability was tested with a novel plasmonic sensor based on ellipsoidal gold nanoparticles arranged in tightly packed hexagonal lattices, exposed to the exchange of different inorganic gases. The controversy often present when comparing the response of plasmonic sensors tested in liquids and gases is resolved by using this new parameter.

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