Structural and single crystal conductivity characterization of fluorine pathways in a (Bi,Pb)(O,F) ionic conductor

The mechanism of F - migration in a trigonal Bi 2O 3-PbO-PbF 2 solid solution was examined by means of structural analysis and single crystal conductivity measurements. From structural considerations, the conduction was expected to occur via a one-dimensional mechanism for the poor conductors and vi...

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Bibliographic Details
Published in:Solid state ionics 1990, Vol.40, p.938-941
Main Authors: Follet-Houttemane, C., Boivin, J.C., Champarnaud-Mesjard, J.C., Mercurio, D., Frit, B.
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Physics
Transport properties of condensed matter (nonelectronic)
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Summary:The mechanism of F - migration in a trigonal Bi 2O 3-PbO-PbF 2 solid solution was examined by means of structural analysis and single crystal conductivity measurements. From structural considerations, the conduction was expected to occur via a one-dimensional mechanism for the poor conductors and via a three-dimensional process as soon as the performances of the electrolyte increase. Conductivity measurements performed in selected directions on single crystals fully agree with these hypothesis.
ISSN:0167-2738
1872-7689
DOI:10.1016/0167-2738(90)90158-N