Electrochemical Impedance Spectroscopy

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EIS: A Powerful Technique

Electrochemical Impedance Spectroscopy (EIS) is a powerful technique with a broad range of research applications.  Click on a link below to view the Application or Technical Note.

Complete List EIS Application Notes »

Waveform Generation and Frequency Resolution

Posted by Dominik on 25 August 2016

This Technical Note outlines how waveform signals are generated with a potentiostat. Further, the term “frequency resolution” is discussed which is often mentioned in specification sheets for potentiostats.

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Determination of the correct value of Cdl from the impedance results fitted by the commercially available software

Posted on 11 March 2015

With the introduction of a constant phase element (CPE) as a replacement for the capacity in EIS measurements, most of the experimentally obtained results could be fitted by commercially available software.

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Use of Transmission Lines for Electrochemical Impedance Spectroscopy

Posted on 20 October 2014

This application note discusses theory and practice of transmission lines.

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How Cabling and Signal Amplitudes Affect EIS Results

Posted on 12 August 2014

Accuracy Contour Plot (ACP) describe a region of accuracy over a given range of impedances and frequencies under a defined set of conditions.

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Potentiostatic EIS Tutorial – Getting Started

Posted on 28 July 2014

Electrochemical impedance spectroscopy (EIS) is a powerful technique that utilizes a small amplitude, alternating current (AC) signal to probe the impedance characteristics of a cell.

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Raman Spectroscopy

Posted on 6 January 2014

This application note discusses Raman spectroscopy and its combination with electrochemical techniques.

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Low-impedance EIS at its Limits: Gamry Reference 30k Booster

Posted on 2 August 2013

This Application Note describes measurement of very small impedances using Electrochemical Impedance Spectroscopy (EIS).

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Verification of Low-impedance EIS Using a 1 mΩ Resistor

Posted on 2 August 2013

This application note describes a series of EIS measurements made on a 1mW surface-mount resistor.

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Create Your Own Components for EIS Modeling

Posted on 2 August 2013

With Gamry’s Echem Analyst and Model Editor you can create all sorts of EIS models provided they are made up of series and parallel combinations of 8 different basic circuit components.

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OptiEIS™: A Multisine Implementation

Posted on 2 August 2013

This application note discusses the use of multiple sine wave excitation in EIS and its implementation in Gamry Instrument software.

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