Electrode Modeling for Titanium Nitride, Iridium and Iridium Oxide Microelectrodes

  • Naser Pour Aryan
  • Hans Kaim
  • Albrecht Rothermel
Part of the SpringerBriefs in Electrical and Computer Engineering book series (BRIEFSELECTRIC, volume 78)


As stated before, electrodes are not standard linear electrical elements. Electrode properties depend on the electrode potential. Especially, in stimulation electrodes, the electrode potential fluctuates over a relatively wide range, thus enhancing the nonlinear characteristics of the electrode-electrolyte interface. However, an approximate electrical model can be helpful in designing the interface circuits to the electrodes, like signal recording or driver circuits. As explained in Chap.  5, impedance spectroscopy is one of the methods to extract the electrode model. In the following this and other methods are explained through practical examples.


Impedance Spectrum Titanium Nitride Microelectrode Array Accessible Charge Spreading Resistance 
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Copyright information

© The Author(s) 2015

Authors and Affiliations

  • Naser Pour Aryan
    • 1
  • Hans Kaim
    • 1
  • Albrecht Rothermel
    • 1
  1. 1.Institute of MicroelectronicsUniversity of UlmUlmGermany

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