Normally, three semicircles appear in the EIS plot of DSSCs, why there are only two in my result?

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Amjad Ali

It depends upon temperature.3 semicircle will appear below 200 oC temperature.start from room temperature to high temperature.

Maryam Anjidani

Thanks for your answer. Do you mean the temperature condition when the measuring eis spectra? how does temperature affect impedance?

Mohammad Nateghi

please refer to the following article:

J. Phys. Chem. B 2005, 109, 14945-14953

Electrochemical Impedance Spectroscopic Analysis of Dye-Sensitized Solar Cells

Qing Wang, Jacques-E. Moser, and Michael Gra1tzel

Dear Dr.Nateghi, I'm so grateful for your help.

Khalil Hamam

What about observing tow semi-circles for a single material!?

in which temperature range two semi-circles were observed?

Mohamed Siddiq

THANKS A LOT BRO Mohammad Nateghi