Correlation of structural and electrical properties of PrBaCo2O5+δ thin films at high temperature
Abstract
Epitaxial PrBaCo2O5+δ (PBCO, 0 ≤ δ ≤ 1) thin films were deposited by pulsed laser deposition. The structural and electrical properties of the films were characterized at high temperatures in reduced environments. X-ray diffraction scans at high temperature in reduced environment show potential structural transitions of PBCO as evidenced by both a large (Δl = 0.335 nm) expansion of the out-plane (c-axis) lattice, due to thermal and chemical expansion, and a step in the expansion of the c-axis lattice parameter. These transitions indicate the presence of oxygen vacancy ordering as the oxygen content in the films is reduced. Resistivity measurements under the same environments also show evidence of sharp transitions related with the structural transformations. In conclusion, this study helps the understanding of the structure-property relationship of PBCO at high temperature and provides important technological information to utilize these materials for solid oxide fuel cell at intermediate temperatures.
- Authors:
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1633334
- Alternate Identifier(s):
- OSTI ID: 1471369
- Report Number(s):
- LA-UR-18-28581
Journal ID: ISSN 2352-8478; S2352847817301077; PII: S2352847817301077
- Grant/Contract Number:
- G12MD007591; AC52-06NA25396
- Resource Type:
- Published Article
- Journal Name:
- Journal of Materiomics
- Additional Journal Information:
- Journal Name: Journal of Materiomics Journal Volume: 4 Journal Issue: 1; Journal ID: ISSN 2352-8478
- Publisher:
- Elsevier
- Country of Publication:
- China
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; High temperature; Physical properties; Complex oxide; Oxygen vacancy; Lattice structures
Citation Formats
Mace, Brennan, Harrell, Zach, Xu, Xing, Chen, Chonglin, Enriquez, Erik, Chen, Aiping, and Jia, Quanxi. Correlation of structural and electrical properties of PrBaCo2O5+δ thin films at high temperature. China: N. p., 2018.
Web. doi:10.1016/j.jmat.2017.12.003.
Mace, Brennan, Harrell, Zach, Xu, Xing, Chen, Chonglin, Enriquez, Erik, Chen, Aiping, & Jia, Quanxi. Correlation of structural and electrical properties of PrBaCo2O5+δ thin films at high temperature. China. https://doi.org/10.1016/j.jmat.2017.12.003
Mace, Brennan, Harrell, Zach, Xu, Xing, Chen, Chonglin, Enriquez, Erik, Chen, Aiping, and Jia, Quanxi. Thu .
"Correlation of structural and electrical properties of PrBaCo2O5+δ thin films at high temperature". China. https://doi.org/10.1016/j.jmat.2017.12.003.
@article{osti_1633334,
title = {Correlation of structural and electrical properties of PrBaCo2O5+δ thin films at high temperature},
author = {Mace, Brennan and Harrell, Zach and Xu, Xing and Chen, Chonglin and Enriquez, Erik and Chen, Aiping and Jia, Quanxi},
abstractNote = {Epitaxial PrBaCo2O5+δ (PBCO, 0 ≤ δ ≤ 1) thin films were deposited by pulsed laser deposition. The structural and electrical properties of the films were characterized at high temperatures in reduced environments. X-ray diffraction scans at high temperature in reduced environment show potential structural transitions of PBCO as evidenced by both a large (Δl = 0.335 nm) expansion of the out-plane (c-axis) lattice, due to thermal and chemical expansion, and a step in the expansion of the c-axis lattice parameter. These transitions indicate the presence of oxygen vacancy ordering as the oxygen content in the films is reduced. Resistivity measurements under the same environments also show evidence of sharp transitions related with the structural transformations. In conclusion, this study helps the understanding of the structure-property relationship of PBCO at high temperature and provides important technological information to utilize these materials for solid oxide fuel cell at intermediate temperatures.},
doi = {10.1016/j.jmat.2017.12.003},
journal = {Journal of Materiomics},
number = 1,
volume = 4,
place = {China},
year = {Thu Mar 01 00:00:00 EST 2018},
month = {Thu Mar 01 00:00:00 EST 2018}
}
https://doi.org/10.1016/j.jmat.2017.12.003
Web of Science
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