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Importance of Metal–Adsorbate Interactions for the Surface-enhanced Raman Scattering of Molecules Adsorbed on Plasmonic Nanoparticles

AuthorsGuerrini, Luca ; Jurasekova, Z. ; Domingo, Concepción ; Pérez-Méndez, Mercedes ; Leyton, P.; Campos-Vallette, M.; García-Ramos, José Vicente ; Sánchez-Cortés, Santiago
Plasmonic nanoparticles
Metal-molecule interaction
Issue Date2007
CitationPlasmonics (2007) 2:147-156
AbstractThe interaction between adsorbates of different nature and plasmonic nanoparticles is reviewed here on the basis of the work done in our laboratory in the past few years. The paper is structured for analyzing the interaction of adsorbates with metal nanoparticles as function of the interacting atom (O, N, or S) and the adsorbate conforma- tion. In the study of the adsorption of molecular species on metals, it is necessary to take into account that different interaction mechanisms are possible, leading to the exis- tence of different molecular forms (isomers or conformers). These forms can be evidenced by changing the excitation wavelength, due to a resonant selection of these wave- lengths. Charge-transfer complexes and electrostatic inter- actions are the usual driving forces involved in the interaction of adsorbates on metal surfaces when these metallic systems are used in wet conditions. The under- standing of the metal–adsorbate interaction is crucial in the surface functionalization of metal surfaces, which has a growing importance in the development of sensing systems
Publisher version (URL)http://dx.doi.org/10.1007/s11468-007-9044-9
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(CFMAC-IEM) Artículos
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