A5057290089- Gold and Silver Nanoparticles Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Spectroscopy Techniques in Biomedical and Chemical Research
- Electrochemical Analysis and Applications
- Protein Interaction Studies and Fluorescence Analysis
Max Planck Institute for Polymer Research
2019-2020
Abstract Electrocatalysts often show increased conversion at nanoscale chemical or topographic surface inhomogeneities, resulting in spatially heterogeneous reactivity. Identifying reacting species locally with nanometer precision during is one of the biggest quests electrochemical science to advance (electro)catalysis and related fields. Here, we demonstrate that tip-enhanced Raman spectroscopy can be used for combined topography reactivity imaging electro-active sites under reaction...
Tip-enhanced Raman spectroscopy (TERS) provides the sensitivity required to obtain vibrational fingerprint of few molecules. While single molecule detection has been demonstrated in UHV experiments, technique ambient, liquid and electrochemical conditions is still limited. In this work, we present a new strategy increase signal-to-noise TERS by spatial light modulation. We iteratively optimize phase excitation beam employing two different feedback mechanisms. one optimization protocol,...