The formation and properties of the electrical double layer (EDL) at the solid-liquid electrolyte interface are crucial for electrochemical devices e.g. supercapacitors, batteries, sensors as well as for biomedical applications.… Click to show full abstract
The formation and properties of the electrical double layer (EDL) at the solid-liquid electrolyte interface are crucial for electrochemical devices e.g. supercapacitors, batteries, sensors as well as for biomedical applications. Various techniques are employed to investigate the structure and composition of the EDL, which are mainly based on optical methods (see review [1]) and more recently on electron spectroscopy [2, 3]. Many applications, however, require real-time probing of liquid interfaces at (meso-) and nanoscale. The latter remains to be an experimentally challenging task.
               
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