Electrolyte Gated Oxides

Electrolyte gating has the potential to generate electric fields at the surface of materials in the 10⁷-10⁸ V/cm range and induce charge carriers in these materials up to 10¹⁴-10¹⁵ cm^-2, making this technique very attractive for studying complex and functional oxides. Several types of processes — notably including proton diffusion and intake — can occur during charging, which makes it crucially important to consider and understand exactly how a given material is interacting with an electrolyte. We report on several of these mechanisms and how to distinguish between them.