Archivio Istituzionale della RicercaSilver nanoparticles are obtained through immersion plating of porous Si in AgNO3 solutions and thermal decomposition of Ag nitrate in oxidized pSi. The efficiency of nanostructures as Surface Enhanced Raman Scattering substrates is checked on a Cyanine dye evidencing detectable concentrations as low as 107 M. The substrate efficiency is strictly related to the Ag particle morphology, which could yield to either Localized Surface Plasmons coupled to individual particles or to inter-particle short-range interaction.
SERS-active substrates based on silvered porous silicon / Giorgis, Fabrizio; Virga, Alessandro; Descrovi, Emiliano; Chiodoni, Angelica; Rivolo, Paola; Venturello, Alberto; Geobaldo, Francesco. - In: PHYSICA STATUS SOLIDI. C, CURRENT TOPICS IN SOLID STATE PHYSICS. - ISSN 1862-6351. - STAMPA. - 6 (7):(2009), pp. 1736-1739. (Intervento presentato al convegno 6th International Conference on Porous Semiconductor Science and Technology, PSST 2008 tenutosi a Mallorca (ESP) nel 10-14 March 2008) [10.1002/pssc.200881094].
SERS-active substrates based on silvered porous silicon
GIORGIS, FABRIZIO;VIRGA, ALESSANDRO;DESCROVI, EMILIANO;CHIODONI, ANGELICA;RIVOLO, PAOLA;VENTURELLO, ALBERTO;GEOBALDO, FRANCESCO
2009
Abstract
Silver nanoparticles are obtained through immersion plating of porous Si in AgNO3 solutions and thermal decomposition of Ag nitrate in oxidized pSi. The efficiency of nanostructures as Surface Enhanced Raman Scattering substrates is checked on a Cyanine dye evidencing detectable concentrations as low as 107 M. The substrate efficiency is strictly related to the Ag particle morphology, which could yield to either Localized Surface Plasmons coupled to individual particles or to inter-particle short-range interaction.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
https://hdl.handle.net/11583/2144428
Attenzione
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo