Electrochemical Impedance Spectra of Dye-Sensitized Solar Cells: Fundamentals and Spreadsheet Calculation

Figure 7

(a) Semi-infinite transmission line depicting diffusion process. (b) Complex plane and (c) Bode plot for the Warburg diffusion where the coefficient  Ω s^−0.5. (d) Complex plane and (e) Bode plot for the impedance corresponding to Randle’s circuit with  Ω,  Ω, and  μF and the Warburg coefficient  Ω s^−0.5. Inset (d) shows Randle’s circuit and magnitude and phase plot for Randle’s circuit.

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