Tip enhanced Raman spectroscopy evidence for amorphous carbon contamination on gold surfaces - Département de physique Accéder directement au contenu
Article Dans Une Revue Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces Année : 2010

Tip enhanced Raman spectroscopy evidence for amorphous carbon contamination on gold surfaces

Résumé

We show that the origin of the spectral fluctuations frequently observed in tip enhanced Raman spectroscopy (TERS) experiments can be mainly related to the presence of surface-contaminating amorphous carbon- based species. We have monitored the spectral fluctuations originating from the sharp metallic tips used as apertureless near field probes, as well as from commonly used noble metal substrates. A correlation between the tip surface roughness and the carbon-based spectral fluctuations has been revealed. An Au-(1 1 1) bare substrate has been mapped with sub-wavelength resolution by TERS, evidencing the localization of the carbon contaminants on the surface steps and grain boundaries.

Dates et versions

hal-00838001 , version 1 (24-06-2013)

Identifiants

Citer

Marc Chaigneau, Gennaro Picardi, Razvigor Ossikovski. Tip enhanced Raman spectroscopy evidence for amorphous carbon contamination on gold surfaces. Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, 2010, 604, pp.701-705. ⟨10.1016/j.susc.2010.01.018⟩. ⟨hal-00838001⟩
138 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More