Listar por autor "Valdivia Mantas, Samuel"
Mostrando ítems 1-6 de 6
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Charge Transfer mechanism in the Surface Enhanced Raman Scattering of 2,2'-bipyridine recorded on a silver electrode
Valdivia Mantas, Samuel; Aranda Ruiz, Daniel; López-Tocón, Isabel
; Soto-Martin, Juan; Otero-Fernandez-de-Molina, Juan Carlos; Avila-Ferrer, Francisco Jose[et al.] (2018-07-17)
Nowadays, Surface Enhanced Raman Spectroscopy (SERS) has become a powerful technique to investigate the electronic structure of surface-molecule hybrid systems due to the huge enhancement of the Raman signal. It is established ... -
Comparative performance of theoretical tools in order to quantify the effect of the electric potential on the vibrational wavenumbers and intensities of the SERS of 2-methylpyrazine adsorbed on a nanostructured silver electrode
Valdivia Mantas, Samuel; Aranda Ruiz, Daniel; Soto-Martin, Juan; Otero-Fernandez-de-Molina, Juan Carlos; López-Tocón, Isabel (Wiley, 2022-11-16)
The effect of the electrode potential in surface-enhanced Raman scattering (SERS) intensities and wavenumbers of 2-methylpyrazine (2MP) was analyzed on the basis of a resonant charge transfer (CT) mechanism by using a ... -
Comparative study of different theoretical approaches for modeling the dependence of the SERS vibrational wavenumbers on the electrode potential
Aranda Ruiz, Daniel; Valdivia Mantas, Samuel; Soto-Martin, Juan; López-Tocón, Isabel; Avila-Ferrer, Francisco Jose; Otero-Fernandez-de-Molina, Juan Carlos[et al.] (2019-07-25)
Surface-enhanced Raman scattering (SERS) is a powerful technique to study the electronic structure of charged metal-molecule interfaces, which are relevant in many fields like electrochemistry, heterogeneous catalysis or ... -
Nuevas evidencias en espectroscopía SERS: Estructura electrónica dual en interfases cargadas metal-adsorbato
(UMA Editorial, 2022-01-24)La interpretación de los espectros SERS (Surface-Enhanced Raman Spectroscopy) en base a la estructura electrónica del sistema en estudio, resulta complejo ya que depende de cada sistema metal-molécula en particular. La ... -
Selection rules of surface-enhanced Raman scattering: the role of the out-of-plane vibrations
Aranda Ruiz, Daniel; Valdivia Mantas, Samuel; Avila-Ferrer, Francisco Jose; Soto-Martin, Juan; López-Tocón, Isabel; Otero-Fernandez-de-Molina, Juan Carlos[et al.] (2019-07-25)
The electromagnetic/plasmonic (SERS-PL) and the chemical (usually involving resonant photoinduced metal-adsorbate (M-A) charge transfer processes (SERS-CT:M-A+hn-->M+-A-)) mechanisms are recognized as the two main contributions ... -
Sensing Bisphenol A by Means of Surface-Enhanced Raman Spectroscopy and DFT Calculations to Elucidate the Enhancement Mechanism That Dominates the Spectrum
Lemos de Souza, Michele; Valdivia Mantas, Samuel; Otero-Fernandez-de-Molina, Juan Carlos; López-Tocón, Isabel (IOAP-MDPI, 2023-01-20)
Surface-Enhanced Raman Spectroscopy (SERS) was employed as a spectroscopic tool to detect Bisphenol A (BPA), a building block in polycarbonate and epoxy resins or an additive in other polymer plastics like PVC, which has ...