Structure/Conductivity Relationship in Doped Bismuth Tantalate Solid Electrolytes


A detailed study of the temperature and compositional variation of defect structure in doped bismuth tantalates is proposed. Tantalum doping into Bi2O3 can achieve d-phase stabilisation at various Bi2O3:Ta2O5 ratios, yielding fluorite based compounds with high conductivity. By increasing the Bi2O3:Ta2O5 ratio and further doping with Y3+ an increase in vacancy concentration can be achieved, whilst maintaining the basic fluorite structure. The temperature dependence of defect structure will be compared with observed non-Arrhenius behaviour in conductivity.

Metadata Access
Creator Dr Xi Liu; Dr Isaac Abrahams; Professor Franciszek Krok; Dr Steve Hull
Publisher ISIS Neutron and Muon Source
Publication Year 2010
Rights CC-BY Attribution 4.0 International;
OpenAccess true
Contact isisdata(at)
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2007-11-23T11:44:28Z
Temporal Coverage End 2007-11-25T23:56:12Z