Modeling and characterization of electrical transport in oxygen conductingsolid electrolytes

A model for the electrical conductivity in acceptor-doped oxides which invo lves an association between the acceptor-dopants and oxygen vacancies resul ting in donor centers is considered. The model relates the behavior of the electrical conductivity with the temperature, ambient atmosphere and band s tructure. The predictions of the model are compared to experimental data fo r ZrO2:16% Y and SrCeO3:5% Yb oxygen conductors and some band structure par ameters have been determined.