Guided anisotropic oxygen transport in vacancy ordered oxides

Zhenzhong Yang, Le Wang, Jeffrey A. Dhas, Mark H. Engelhard, Mark E. Bowden, Wen Liu, Zihua Zhu, Chongmin Wang, Scott A. Chambers, Peter V. Sushko () and Yingge Du ()
Additional contact information
Zhenzhong Yang: Pacific Northwest National Laboratory
Le Wang: Pacific Northwest National Laboratory
Jeffrey A. Dhas: Oregon State University
Mark H. Engelhard: Pacific Northwest National Laboratory
Mark E. Bowden: Pacific Northwest National Laboratory
Wen Liu: Pacific Northwest National Laboratory
Zihua Zhu: Pacific Northwest National Laboratory
Chongmin Wang: Pacific Northwest National Laboratory
Scott A. Chambers: Pacific Northwest National Laboratory
Peter V. Sushko: Pacific Northwest National Laboratory
Yingge Du: Pacific Northwest National Laboratory

Nature Communications, 2023, vol. 14, issue 1, 1-9

Abstract: Abstract Anisotropic and efficient transport of ions under external stimuli governs the operation and failure mechanisms of energy-conversion systems and microelectronics devices. However, fundamental understanding of ion hopping processes is impeded by the lack of atomically precise materials and probes that allow for the monitoring and control at the appropriate time- and length- scales. In this work, using in-situ transmission electron microscopy, we directly show that oxygen ion migration in vacancy ordered, semiconducting SrFeO2.5 epitaxial thin films can be guided to proceed through two distinctly different diffusion pathways, each resulting in different polymorphs of SrFeO2.75 with different ground electronic properties before reaching a fully oxidized, metallic SrFeO3 phase. The diffusion steps and reaction intermediates are revealed by means of ab-initio calculations. The principles of controlling oxygen diffusion pathways and reaction intermediates demonstrated here may advance the rational design of structurally ordered oxides for tailored applications and provide insights for developing devices with multiple states of regulation.

Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/s41467-023-40746-4 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40746-4

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-023-40746-4

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().