Mostrar el registro sencillo del ítem

dc.contributor.authorCenteno, Silvia 
dc.contributor.authorRuano, Cristina
dc.contributor.authorRoman-Perez, Jessica
dc.contributor.authorLópez-Ramírez, Jessica
dc.contributor.authorSoto, Juan
dc.contributor.authorOtero, Juan Carlos
dc.date.accessioned2014-09-10T12:29:20Z
dc.date.available2014-09-10T12:29:20Z
dc.date.created2014-08-10
dc.date.issued2014-09-10
dc.identifier.urihttp://hdl.handle.net/10630/8017
dc.descriptionContribución Póster al congreso XXIV ICORS 2014.es_ES
dc.description.abstractAlthough 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 experiments the adsorbates can undergo photoinduced charge transfer processes and huge energy gains up to 5eV/V have been reported which are in conflict with the classical picture of SERS (G=1). Electronic cluster calculations of metal-molecule nano clusters demonstrate that this "anomalous" gain is mainly due to two different contributions: the sensitivity of the CT electronic states of the metal-molecule system on the effective charge excess of the metal, and, secondly, the enhancement of the electric capacitance of the metal nano cluster. We are able to estimate this capacitance enhancement from SERS spectra and explain it by assuming that the strongest SERS signal comes mainly from those surface nano structures where a higher charge excess is stored.es_ES
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.es_ES
dc.language.isoenges_ES
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectEspectroscopía Ramanes_ES
dc.subject.otherSERSes_ES
dc.subject.otherMetal-molecule nanoclusterses_ES
dc.subject.otherNanoscale electric capacitance measurementses_ES
dc.titleUsing SERS to probe electric capacitive enhancement in nanometer-size hot spotses_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.centroFacultad de Cienciases_ES
dc.relation.eventtitleXXIV International Conference on Raman Spectroscopyes_ES
dc.relation.eventplaceJena, Alemaniaes_ES
dc.relation.eventdate10-08-14es_ES


Ficheros en el ítem

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem