Content Advisory
Please be aware that this content contains descriptions of violence that may be distressing to some viewers.This article reports on the extension of a previous theoretical expression of SERS to include the possibility of coupling the molecular levels with the continuum of levels in the conduction band in the metal. The project modified the expression for excitation profiles to account for interference between nearby conduction band levels, producing an asymmetric Fano line shape.
Both charge-transfer and molecular transitions were considered, since both can contribute to the SERS enhancement. The theory was tested by comparison with the observed profiles in pyridine, p-aminothiopehnol (PATP), and an azo dye (DABS). The experimental profiles are clearly asymmetric, dipping into the continuum on one side and approaching the continuum asymptotically on the other. In each case, an excellent fit of the Fano profile was obtained. (publisher abstract modified)
Downloads
Similar Publications
- The cross-reactivity of cannabinoid analogs (delta-8-THC, delta-10-THC and CBD), their metabolites and chiral carboxy HHC metabolites in urine of six commercially available homogeneous immunoassays
- Restoring Promise: Positive Research Results from a Program that Aims to Transform Correctional Culture
- Media Contact and Posttraumatic Stress in Employees of New York City Area Businesses after the September 11 Attacks