Electrochemical Characterization of Nanoporous Nickel Oxide Thin Films Spray-Deposited onto Indium-Doped Tin Oxide for Solar Conversion Scopes

Figure 26

Electrochemical impedance spectra of ERY-sensitized CS NiO_x polarized at different values of applied potential (see inset). Spectra have been recorded in dark conditions and displayed as Nyquist plots ((a) small scale; (b) large scale). NiO film thickness: 0.3 m; substrate: ITO. Arrows indicate the direction of increase for the frequency of polarization.

(a)

(b)