Fig 5. Equivalent schemes.

a) Scheme ES (empty-structure) Equivalent scheme for empty circuit test-structure, that model red-ox reactions and diffusion of reactants in surrounding medium. Technically, this scheme models electrolyte film impedance. b) Scheme ES+NF (empty-structure+nanofilament) This scheme describes the sample with nanofilament (three bottom R-C blocks, two for electrochemical reactions occurring on the left and right nanowire-contact interfaces and one for the nanofilament itself) in parallel with the electrolyte film impedance. This scheme works at all humidities.