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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. The new technique has been applied for acquisition of Mott-Schottky plots of cathodically treated TiO2 anodic films. Cathodic treatment in 1 M H2SO4 increases donor density and flat band potential of TiO2. Freshly doped films show hysteresis in the space charge layer capacitance in cyclic potential scans. The subsequent cycling eliminates the hysteresis but preserves the greater part of the doping effect.
2 Experimental Potentiodynamic electrochemical impedance spectrometer is a computer program that acquires electrochemical system …
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