Webinar: Recent Advances in Modeling Surface-Enhanced Raman Scattering
In this third webinar of the AMS 2024 webinar series, Prof. Dr. Lasse Jensen from the The Pennsylvania State University is providing insights in the modeling and understanding of surface-enhanced Raman scattering.
Abstract
In Surface-enhanced Raman scattering (SERS), the Raman signal of a molecule adsorbed on a metal surface is enhanced by many orders of magnitude. SERS is a valuable tool for identifying molecular species and provides detailed insight into the orientation of molecules at metallic interfaces. Cluster models are commonly used to understand SERS, but it remains challenging to interpret the different enhancement mechanisms. Here we present our recent progress on interpreting the enhancement mechanisms in SERS using a first-principles Raman bond model. In this model, a real-space partitioning of the induced charge-density is used to map
charge-flow modulations to the enhancement and provide an intuitive and quantitative interpretation of SERS mechanisms. We will also discuss how solvent effects can be incorporated into modeling of SERS. We will show the importance of describing the local environment due to the solvent molecules when modeling SERS. Finally, we will discuss our latest models focusing on understanding high-resolution single molecule imaging using tip-enhanced Raman scattering.
Webinar Details:
Date: Thursday 21.11.2024
Time: 17.00 (CET) / 11.00 (ET)
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