Bismuth trioxide in the cubic fluorite phase (delta-Bi2O3) exhibits the highest oxygen ionic conductivity. In this study, we were able to stabilize the pure delta-Bi2O3 at low temperature with no addition of stabilizer but only by engineering the interface, using highly coherent heterostructures made of alternative layers of delta-Bi2O3 and Yttria Stabilized Zirconia (YSZ), deposited by pulsed laser deposition. The resulting [delta-Bi2O3/YSZ] heterostructures are found to be stable over a wide temperature range (500-750 degrees C) and exhibits stable high ionic conductivity over a long time comparable to the value of the pure delta-Bi2O3, which is approximately two orders of magnitude higher than the conductivity of YSZ bulk. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license

Sanna, S., Esposito, V., Christensen, M., Pryds, N. (2016). High ionic conductivity in confined bismuth oxide-based heterostructures. APL MATERIALS, 4(12), 121101 [10.1063/1.4971801].

High ionic conductivity in confined bismuth oxide-based heterostructures

Sanna S.;
2016-01-01

Abstract

Bismuth trioxide in the cubic fluorite phase (delta-Bi2O3) exhibits the highest oxygen ionic conductivity. In this study, we were able to stabilize the pure delta-Bi2O3 at low temperature with no addition of stabilizer but only by engineering the interface, using highly coherent heterostructures made of alternative layers of delta-Bi2O3 and Yttria Stabilized Zirconia (YSZ), deposited by pulsed laser deposition. The resulting [delta-Bi2O3/YSZ] heterostructures are found to be stable over a wide temperature range (500-750 degrees C) and exhibits stable high ionic conductivity over a long time comparable to the value of the pure delta-Bi2O3, which is approximately two orders of magnitude higher than the conductivity of YSZ bulk. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license
2016
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - FISICA SPERIMENTALE
English
Sanna, S., Esposito, V., Christensen, M., Pryds, N. (2016). High ionic conductivity in confined bismuth oxide-based heterostructures. APL MATERIALS, 4(12), 121101 [10.1063/1.4971801].
Sanna, S; Esposito, V; Christensen, M; Pryds, N
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/224381
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