Silver-based surface enhanced Raman scattering (SERS) substrate fabrication using nanolithography and site selective electroless deposition

Coluccio, Maria Laura; Das, Gobind; Mecarini, Federico; Gentile, Francesco; Pujia, A; Bava, Luisa; Tallerico, Rossana; Candeloro, Patrizio; Liberale, Carlo; Angelis, Francesco De; Fabrizio, E. Di

doi:10.1016/j.mee.2008.12.061

Cited by 113 publications

(73 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7 Recently, considerable efforts have been directed to assemble the silver or gold nanostructures on glass, silicon, carbon, and metal material surfaces by many techniques including templates, vacuum evaporation, nanolithography, and etching. [8][9][10][11][12] The electromagnetic "hot spots" exist in the sharp features, large curvature regions, and gap sites between two particles in proximity. The above nanostructure films show significantly better stability, sensitivity, and controllability.…”

Section: Introductionmentioning

confidence: 99%

Surface-Enhanced Raman Scattering of 4-Aminothiophenol Adsorbed on Silver Nanosheets Deposited onto Cubic Boron Nitride Films

et al. 2010

View full text Add to dashboard Cite

A simple method was found for the fabrication of silver nanosheets (AgNS) by the catalysis of gold nanoparticles (AuNP) on an amine-terminated cubic boron nitride (cBN) surface deposited on a Si(001) substrate in the presence of reductant. The morphology of the AgNS/AuNP/NH2-cBN/Si(001) sample was characterized by scanning electron microscopy and X-ray diffraction. The performance of the AgNS/AuNP/NH2-cBN/Si(001) sample as surface-enhanced Raman scattering (SERS) active substrate was evaluated by using 4-aminothiophenol (PATP) as the probe molecule. The SERS measurements showed that the maximum intensity was obtained on the AgNS/AuNP/NH2-cBN/Si(001) sample for 5 min silver deposition. Compared with the AuNP/NH2-cBN/Si(001) sample and a silver film/cBN/Si(001) prepared by the mirror reaction, the SERS signal of PATP was obviously improved on the above AgNS/AuNP/NH2-cBN/Si(001) film. The sensitivity and the stability of the AgNS/AuNP/NH2-cBN/Si(001) sample were also investigated.

show abstract

Section: Introductionmentioning

confidence: 99%

Surface-Enhanced Raman Scattering of 4-Aminothiophenol Adsorbed on Silver Nanosheets Deposited onto Cubic Boron Nitride Films

et al. 2010

View full text Add to dashboard Cite

show abstract

“…The spectra were baseline corrected using the Project 4 (WiTec software). The fingerprint vibrational bands of Rd6G were clearly visible at around 1650, 1575, 1513, 1364, 1285, and 1208 cm -1 [38,39]. One sharp band, observed at around 521.5 cm -1 for FlatAg_Si sample, is due to the Si substrate underneath of Ag surface.…”

Section: Methodsmentioning

confidence: 92%

Graphene: A Building Foundation for Efficient Plasmonic SERS Device

Das¹,

Moretti²,

Torre³

et al. 2017

Biochem Anal Biochem

Self Cite

View full text Add to dashboard Cite

In this paper graphene over SiO 2 /Si substrate was used as a building base to fabricate SERS device. A thin film of silver was deposited over graphene and annealed at 250°C. The substrate was examined after chemisorption of two molecules; rhodamine 6G which is a fluorescent dye, and 3-mercaptobenzoic acid, a thiol molecule. SERS enhancement factor for the proposed device is estimated to be 2.1 × 10 6 with respect to the flat silver substrate deposited over Si. The experimental results were compared in two ways: a) by using electromagnetic field calculation and b) quantum mechanical calculation derived from density function theory. The experimental findings were consistent with the theoretical observations.

show abstract

“…Here, the attention is centered on deposition of silver and gold nanoparticles for SERS application by electroless technique in which the reducing agent is the substrate itself (Coluccio et al, 2009). After the resist developing (the 3° steps of lithographic process) the pattern on Si wafer consists in holes where silicon remains uncovered.…”

Section: Nps Based Plasmonics Devices For Sers Applicationsmentioning

confidence: 99%

“…The oxidation of silicon, produced the electrons, is necessary for the silver reduction (Goia & Matijevic, 1998;Coluccio et al, 2009;Palermo & Jones, 2001). The mechanism of formation of the nanoparticles begins with few silver ions that react directly with the substrate forming metallic nuclei.…”

Section: Nps Based Plasmonics Devices For Sers Applicationsmentioning

confidence: 99%