Listar por autor "Roman-Perez, Jessica"
Mostrando ítems 1-10 de 10
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Charge transfer in the nanoscale and SERS: understanding the huge efficiency of the electrode potencial in tuning the CT states
Centeno-Benigno, Silvia Patricia
; Ruano, Cristina; Roman-Perez, Jessica; López-Tocón, Isabel; Soto-Martín, Juan; Otero-Fernández-de-Molina, Juan Carlos[et al.] (2014-09-10)
This work deals with the unexplained efficiency of the electrode potential in tuning the energy of the CT states of hybrid systems formed by molecules and metallic nano structures. Huge energy gain up to 5eV/V observed in ... -
Effect of the electrode potential on surface-enhanced Raman intensities of 2-methylpyrazine
López-Tocón, Isabel; Centeno-Benigno, Silvia Patricia; Roman-Perez, Jessica; Otero-Fernández-de-Molina, Juan Carlos (2014-05-30)
The effect of the electrode potential on Surface Enhanced Raman Scattering (SERS) intensities of 2-methylpyrazine (2MP) recorded under resonant charge transfer (CT) conditions is analyzed by using a simple theoretical model ... -
Electrochemical SERS spectra of isonicotinic acid analyzed under a photoinduced charge-transfer mechanism
López-Tocón, Isabel; Roman-Perez, Jessica; Soto-Martín, Juan; Otero-Fernández-de-Molina, Juan Carlos (2014-05-28)
Isonicotinic (IN) acid is one of the three monocarboxilic derivatives of pyridine in which the acid group is located in para-position of the heterocyclic ring. It is a weak acid (pK2=4.86) and therefore, it is not completely ... -
Modeling the effect of the electrode potential in SERS by electronic structure calculations.
Ávila-Ferrer, Francisco José; Aranda Ruiz, Daniel; Roman-Perez, Jessica; López-Ramírez, María Rosa; López-Tocón, Isabel; Arenas Rosado, Juan Francisco; Otero-Fernández-de-Molina, Juan Carlos; Soto-Martín, Juan[et al.] (2018-07-18)
Surface Enhanced Raman Spectroscopy (SERS), due to the ability of greatly intensify the weak Raman signal of molecules adsorbed to metal surfaces, has proven to be a very useful tool to investigate changes in the electronic ... -
Procesos de Resonancia Raman en Espectroscopía SERS
(UMA Editorial, 2015)Se han estudiado diversas cuestiones fundamentales relacionadas con el origen de la enorme intensificación que experimenta el espectro Raman de una molécula situada en las proximidades de ciertas superficies metálicas. La ... -
SERS study of thiocarbonyl compounds adsorbed on metal nanoparticles
Otero, J.C.; Castro, Jose Luis; López-Ramírez, María Rosa; Roman-Perez, Jessica (2015-06-03)
Thiocarbonyl compounds have been reported to exhibit interesting biological and pharmacological properties but they are many often characterized by their toxicological effects. However the chemistry of thiobenzoic acid ... -
Surface-enhanced photoinduced charge transfer processes in metal-molecule nanoclusters
Centeno-Benigno, Silvia Patricia; Ruano, Cristina; Roman-Perez, Jessica; López-Tocón, Isabel; Soto-Martín, Juan; Otero-Fernández-de-Molina, Juan Carlos[et al.] (2013-10-29)
This work deals with the unexplained efficiency of the electrode potential (EV) in tuning the energy of Charge Transfer (ECT) electronic states of hybrid systems formed by molecules and metal nanostructures. Huge energy ... -
Theoretical and experimental SERS study of thiocarbonyl compounds adsorbed on metal nanoparticles
Castro, Jose Luis; Roman-Perez, Jessica; Otero, J.C.; López-Ramírez, María Rosa (2015-06-18)
Thiocarbonyl compounds have been reported to exhibit interesting biological and pharmacological properties but they are many often characterized by their toxicological effects. However the chemistry of thiobenzoic acid ... -
Using SERS to probe electric capacitive enhancement in nanometer-size hot spots
Centeno-Benigno, Silvia Patricia; Ruano, Cristina; Roman-Perez, Jessica; López-Ramírez, Jéssica; Soto-Martín, Juan; Otero-Fernández-de-Molina, Juan Carlos[et al.] (2014-09-10)
Although the electromagnetic mechanism related to localized plasmons of the metal is the most important contribution in SERS, the chemical interaction between metal and molecule plays a crucial role. In SERS electrochemical ... -
Using Surface-enhanced Raman scattering to probe the capacitance of metallic nanostructures
Centeno-Benigno, Silvia Patricia; Ruano, Cristina; Roman-Perez, Jessica; López-Tocón, Isabel; Otero-Fernández-de-Molina, Juan Carlos; Soto-Martín, Juan[et al.] (2013)
Though it is generally accepted that the electromagnetic mechanism related to the excitation of localized plasmons of the metal surface is the most important contribution in SERS, the chemical interaction between molecule ...