Voltammetries of an OMeTAD cell. Fresh samples need certain time to re-locate the ions and reach the maximum efficiency. This time may be reduced by cycling or simply keeping the sample at a negative potential in the dark.
decays of OMeTAD cell and liquid electrolyte. The lower recombination time in the liquid cell agrees with its much higher efficiency.
Absorption spectroscopy transients of liquid and OMeTAD cells in the dark (a) and under white bias illumination (b).
Impedance spectra of samples #B3 at (a) and #T2 at (b). The respective insets show the high frequency arcs in both cases. Arrow in (b) points transport effect in the spectrum. This effect disappears both at more negative and more positive potentials.
Resistance of the OMeTAD measured with IS of blank cells #B1, #B1b, #B2, #B3, and #B3b of different thickness.
Total resistance (a) and capacitance (b) of different samples of OMeTAD, #B4, unsensitized , #T2, and a complete cell, #O7.
Comparison of characteristic times calculated from IS and decay.
dc Resistance of a complete OMeTAD DSSC, #O7, in the dark and under illumination at different potentials.
Proposed equivalent circuit for the impedance of OMeTAD DSSC.
Configuration of the different samples.
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