Journal article
Structural Investigation of Perovskite Manganite and Ferrite Films on Yttria-Stabilized Zirconia Substrates
Journal of the Electrochemical Society, v 159(8), pp F436-F441
01 Jan 2012
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Abstract
Thin films of La0.7Sr0.3MnO3 and La0.7Sr0.3FeO3 have been deposited on single crystal yttria-stabilized zirconia (YSZ) substrates using molecular beam epitaxy. Due to the large lattice mismatch, three-dimensional growth is observed with strain relaxation occurring within 1-2 unit cells. The as-grown perovskite/YSZ interfaces are abrupt, despite the imperfections associated with strain relaxation. The films exhibit a single crystallographic orientation along the growth direction, with the perovskite [011] parallel to the YSZ [001]. Synchrotron diffraction and plan view transmission electron microscopy reveal the presence of a columnar grain structure with the in-plane [100] and [01 (1) over bar] film directions preferentially orientated along the YSZ < 100 >. The stabilization of perovskites on YSZ substrates with abrupt interfaces and a well-defined crystallographic orientation allows for the use of thin film model systems to study cathode/electrolyte interfacial reactions and morphological changes relevant to solid oxide fuel cells. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.032208jes]
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Details
- Title
- Structural Investigation of Perovskite Manganite and Ferrite Films on Yttria-Stabilized Zirconia Substrates
- Creators
- C. R. Smith - Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USAJ. D. Sloppy - Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USAH. Wu - Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USAT. S. Santos - Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USAE. Karapetrova - Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USAJ. -W. Kim - Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USAP. J. Ryan - Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USAM. L. Taheri - Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USAS. J. May - Drexel University
- Publication Details
- Journal of the Electrochemical Society, v 159(8), pp F436-F441
- Publisher
- Electrochemical Soc Inc
- Number of pages
- 6
- Grant note
- DE-AC02-06CH11357 / US Department of Energy, Office of Science, Office of Basic Energy Science; United States Department of Energy (DOE) P200A100134 / US Department of Education under GAANN program American Chemical Society
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000308559400064
- Scopus ID
- 2-s2.0-85016879527
- Other Identifier
- 991019167454604721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Electrochemistry
- Materials Science, Coatings & Films