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Direct approach for impedance analysis of ion conducting glasses

Authors: Fraenkl Max | Shimakawa Koichi | Patil Deepak | Macák Jan | Vlček Milan | Wágner Tomáš

Year: 2015

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	Direct approach for impedance analysis of ion conducting glasses	Electrochemical impedance spectroscopy (EIS) is powerful method for understanding dynamics of ionic transport. Measured data are mainly analyzed by using equivalent electrical circuits (EEC) or Poisson-Nernst-Planck (PNP) equation [3]. The EEC method does not provide physical parameters such as the diffusion coefficient, the number of mobile ions, etc. The PNP approach (in principal macroscopic method) is not so popular, probably due to the high mathematical complexity. Being unhappy with these drawbacks and limitations we propose our direct microscopic approach of analysis EIS [4-6]. Studied systems are chlacogenide glasses doped with Ag. Our model is based on Dyre’s random walk theory [7]. .	Electrochemical impedance; ionic conductros; random walk model