Amplitude voltage in EIS ?

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Amjad Khan

5mV

Adwaita Kundu

usually 10mV amplitude is applied in EIS.

Sompalli Kishore Babu

In electrochemical impedance spectroscopy (EIS), the term "amplitude voltage" (or "amplitude excitation") refers to the amplitude of the brief sinusoidal voltage signal applied to the sample during the experiment. The voltage signal is often applied at a number of different frequencies and ranges in voltage from a few millivolts (mV) to a few hundred mV. The voltage signal's amplitude is selected to be large enough to be able to detect changes in impedance while still being modest enough not to significantly alter the electrochemical properties of the system.

Shijil Anamkunnath Nediyirakkal

Sompalli Kishore Babu Hi

Thanks for your response.

Can you suggest how can I choose the "appropriate voltage or current amplitude " for EIS measurement ?