Variable Mott-Schottky plots acquisition by ...

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J. Solid State Electrochem. 2005 DOI The original publication is available at This preprint was downloaded from Variable Mott-Schottky plots acquisition by potentiodynamic electrochemical impedance spectroscopy Alexander S. Bondarenko and Genady A. Ragoisha * Physico-Chemical Research Institute, Belarusian State University, 220050 Minsk, Belarus Abstract Potentiodynamic electrochemical impedance spectroscopy provides extraction of potential-dependent space charge layer capacitance from potentiodynamic impedance spectra of nonstationary semiconductor-electrolyte interface.

5 Results and Discussion Undoped anodic TiO2 film gives almost identical Csc-2(E) plots in cathodic and anodic scans (curve 1 in Fig. 4a). The plot is linear in the potential range from 0.15 to 0.5 V (Fig. 4b). Freshly doped TiO2 shows nonstationarity both in constant frequencies and in constant potential sections of the PDEIS

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