Raman spectroscopy of active-carbon electrodes when Au colloids are placed at the electrolyte/electrode interface

The ratio of Raman graphic line (G-line) versus the defect line (d-line), ID/IG for dry, active-carbon electrode, which is incorporated with functionalized, 100 nm gold colloids. Blue - preferred measurement position; Black - random measurement position. The ratio is independent of the sample's point of measurement.