Surface-enhanced resonant Raman spectroscopy of single-wall carbon nanotubes adsorbed on silver and gold surfaces

Fabrication of silver nanoparticles/single-walled carbon nanotubes composite for surface-enhanced Raman scattering

“…It is obvious that the G À band about 1560 cm À1 of SERS was widened significantly. Corio et al [48] also observed a similar circumstance when studying the SERS spectra on bulk sample of SWNTs, and attributed the cause to the strong electron-phonon coupling in metallic SWNTs. Moreover, the D-band and G-band shifts of SERS spectra relative to NRS provided the evidence for a significant perturbation of electronic levels of SWNTs.…”

“…The charge-transfer between SWNTs and metal has previously been reported [42][43][44][46][47][48][49]. The ''abnormal" SERS spectra of SWNTs in Ag/SWNTs composite (S3) were obtained as Fig.…”

Tailored nanoantennas for directional Raman studies of individual carbon nanotubes

“…The resulting increase of the Raman cross section provides an additional amplification mechanism. This effect is much more pronounced in metallic CNTs, as demonstrated by SERS experiments with colloidal Ag or Au clusters [10,11]. Chemical SERS can explain the change in the G peak shape observed for some bundles.…”

Detection of Persistent Organic Pollutants by Using SERS Sensors Based on Organically Functionalized Ag Nanoparticles

“…In general, aromatic compounds such as anthracene, pyrene and phthalocyanine derivatives interact with the graphitic walls of nanotubes [56,57] by π − π stacking of aromatic rings. The immobilization of SWCNT on metal surfaces has already been characterized by Corio et al [58] by using different excitation laser lines and metal surfaces. From these studies, it was evident that the resonance Raman effect of nanotubes can be applied to investigate their electronic characteristics and their interaction with the metal surface.…”