Potential oscillations during the electrocatalytic oxidation of sulfide on a microstructured Ti/Ta2O5-IrO2 electrode

Article Abstract:

Electrochemical methods such as cyclic voltammetry differential capacity and electrochemical impedance spectroscopy (EIS) were used to study the electro oxidation of sulfide on a micro structural oxide electrode Ti/Ta2-O5-IrO2. This method has proved to be very useful to examine the nature of oscillations as the change in the electrode surface can be seen during the potential oscillation.

Spectrum analysis, Spectroscopy, Sulfides, Electrochemical reactions

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Flatband potential of F:SnO2 in a TiO2 dye-sensitized solar cell: An interference reflection study

Article Abstract:

A model for the analysis of interference reflection data of nanoporous TiO2 dye-sensitized solar cells (DSSC) is presented. It is shown that the interference reflection technique allows one to monitor very precisely the evolution of the depletion layer of the fluor-doped SnO2 (FTO) conducting substrate at the DSSC back contact with the position of the Fermi level.

Titanium dioxide, Tin compounds, Chemical properties, Fermi surfaces

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Internal reference electrode in dye sensitized solar cells for three-electrode electrochemical characterizations

Article Abstract:

Analysis of efficient solar cells shows that the contributions of the counter electrode to the energy losses are larger than expected. Correlations between 2-electrode and 3-electrode measurements provide information regarding the quality of the counter electrode and possible potential drops in the systems.

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