We note that here we report currents normalized per geometric surface area. For the measurements with the Ni-poly disk, this is straightforward. For the measurements with NF, we used a geometrical cross-section multiplied by 2. The same is done for Ni-dep electrodes, but we excluded the surface of voids between the Ti wires forming the mesh. It is done because the used mesh is rather sparse, and using a finer mesh would give higher currents within the same geometrical area (3×3 mm).