Publication detail

Study of ionic properties of Ag-Ge-Sb-S glasses by electrochemical impedance spectroscopy and radioactive tracer diffusion

Authors: Fraenkl Max | Shimakawa Koichi | Wágner Tomáš

Year: 2016

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	Study of ionic properties of Ag-Ge-Sb-S glasses by electrochemical impedance spectroscopy and radioactive tracer diffusion	Solid-state ion conductors are an important class of materials. These materials attract considerable interest due to their potential applications in the field of electrolytes in batteries and fuel cells, gas sensors, etc. Electrochemical impedance spectroscopy (EIS) is powerful method for understanding dynamics of ionic transport. For analysis of impedance spectra we use model based on Dyre's random walk theory. Directly obtained information are hopping times of mobile ions. Diffusion coefficient is calculated. Radiactive tracer diffusion is macroscopic method which provide us diffusion coefficient. Case example is chalcogenide glass GeSb2S5 doped with Ag. The study shows, how helpful this approach can be to understand ionic transport mechanism.	Ionic properties; Ag-Ge-Sb-S glasses; electrochemical impedance spectroscopy; radioactive tracer diffusion; random walk theory

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