Fig. 3: Investigation of electrical double layer (EDL) formation in asymmetric electrolytes using 3D-atomic force microscopy (AFM) and surface-enhanced Raman spectroscopy (SERS).
From: Probing electrical double layer via triboelectric charge transfer
a 3D-AFM schematic illustration. b Typical hydration force-distance curve in solutions with different concentrations. c SERS schematic illustration. d Raman signals of [EMIM]Cl solution at different concentrations and potentials. e EDL model of [EMIM]Cl solution at a lower concentration. f EDL model of [EMIM]Cl solution at higher concentration.
