Photoemission Electron Microscopy Video of Ionic Liquid/gold Electrodes (VIDEO)
Caption
The scientists acquired this photoemission electron microscopy movie while biasing gold electrodes covered with three monolayers of the studied ionic liquid. The change in contrast corresponds to a change in the photoemission signal intensities from the ionic liquid-electrode interface, signifying the migration of ions in response to voltage biases on the electrodes. A positive voltage bias results in a darker contrast (higher density of anions near electrode) and a negative one in brighter contrast (higher density of cations near electrode).
Credit
Brookhaven National Laboratory
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