Copper(ii) and cobalt(iii) Schiff base complexes with hydroxy anchors as sensitizers in dye-sensitized solar cells (DSSCs).

The radius of the semicircle in the light and in the dark are in the order of Co-Sal < Cu-Sal and Co-Sal > Cu-Sal respectively, which signify a decreasing trend of the electron transfer impedance ( R ct ) as well as an increase in the charge transfer rate at this interface after sensitization. 61 The EIS study under light and dark conditions confirms that the charge transfer rate increases and the charge recombination rate decreases after sensitization, which is favorable for enhancing the performance of DSSCs.

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