RT Conference Proceedings
T1 Electric field and solvent model for Electrochemical SERS: excited-state and enhancement tuning
A1 García, Francisco
A1 Aranda Ruiz, Daniel
A1 Ávila, Francisco
A1 Otero-Fernández-de-Molina, Juan Carlos
K1 Electroquímica - Congresos
K1 Química física - Congresos
AB Being SERS a promising technique due to it potentially combining the well-known characterization prowess of Raman with thehigh sensitivity arising from nanoparticle-associated enhancement, 1 understanding the mechanisms due to which SERS differsfrom Normal Raman is key to accomplish effective applications of this technique. Following the consensus about the theoreticalbackground that stablishes the enhancement mechanisms in SERS, 2 and focusing on electrode potential as a variable inElectrochemical (EC) SERS, for our work we have studied Pyridine (Py) SERS spectra modelling an EC-SERS nanostructuredsurface through an Ag 6 cluster in different orientations, with an electric field parallel to the Ag 6 -Py axis reproducing electrodepotential, as depicted in Figure 1. The objective of such model is to simulate Pyridine SERS spectra and rationalizing these resultsbased on well-established properties, accounting for symmetry considerations, coupling terms and the influence of the solventon the system to carry out a straightforward understanding of SERS enhancement mechanisms. Our results are able to effectivelyreproduce the main relative intensities of Pyridine SERS spectra, shedding light on the influence of the aforementioned propertieson the calculated lineshapes and intensities.
YR 2023
FD 2023
LK https://hdl.handle.net/10630/25915
UL https://hdl.handle.net/10630/25915
LA eng
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026