Li, L. orcid.org/0000-0002-9565-9830, Kler, J., West, A.R. orcid.org/0000-0002-5492-2102 et al. (2 more authors) (2021) High oxide-ion conductivity in acceptor-doped Bi-based perovskites at modest doping levels. Physical Chemistry Chemical Physics, 23 (19). pp. 11327-11333. ISSN 1463-9076
Abstract
A combination of impedance spectroscopy, time-of-flight secondary ion mass spectrometry and literature data are used to show that, (i) the bulk oxide ion conductivity of A-site, alkaline earth-doped BiFeO3 (BF) is independent of the ionic radius of the alkaline earth ion (Ca, Sr, Ba) and, (ii) despite very different A-site environments in (Na1/2Bi1/2)TiO3 and BF, similar high levels and optimisation of bulk oxide ion conductivity in these Bi-based tilted perovskites is achieved at modest acceptor doping levels of ∼1–10%. These results clearly demonstrate that optimisation of oxide ion conductivity in these materials requires concepts beyond a simple crystallochemical approach based on matching the ionic radii of acceptor dopant and host lattice ions.
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Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © the Owner Societies 2021. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. (http://creativecommons.org/licenses/by-nc/3.0/) |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/L017563/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/L027348/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 09 Jul 2021 17:08 |
Last Modified: | 09 Jul 2021 17:08 |
Status: | Published |
Publisher: | Royal Society of Chemistry (RSC) |
Refereed: | Yes |
Identification Number: | 10.1039/d1cp01120k |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:175966 |
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