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Title: Strain tuning and strong enhancement of ionic conductivity in SrZrO 3-RE 2O 3 (RE = Sm, Eu, Gd, Dy, and Er) nanocomposite films

Abstract

Fast ion transport channels at interfaces in thin films have attracted great attention due to a range of potential applications for energy materials and devices, for, solid oxide fuel cells, sensors, and memories. Here, it is shown that in vertical nanocomposite heteroepitaxial films of SrZrO 3–RE 2O 3 (RE = Sm, Eu, Gd, Dy, and Er) the ionic conductivity of the composite can be tuned and strongly enhanced using embedded, stiff, and vertical nanopillars of RE 2O 3. With increasing lattice constant of RE 2O 3 from Er 2O 3 to Sm 2O 3, it is found that the tensile strain in the SrZrO 3 increases proportionately, and the ionic conductivity of the composite increases accordingly, by an order of magnitude. Lastly, the results here conclusively show, for the first time, that strain in films can be effectively used to tune the ionic conductivity of the materials.

Authors:
 [1];  [2];  [2];  [3];  [2];  [1]
  1. Univ. of Cambridge, Cambridge (United Kingdom)
  2. Texas A & M Univ., College Station, TX (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1329686
Report Number(s):
LA-UR-15-23679
Journal ID: ISSN 1616-301X
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Advanced Functional Materials
Additional Journal Information:
Journal Volume: 25; Journal Issue: 27; Journal ID: ISSN 1616-301X
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; material science; thin films; nanocomposite; ionic; strain; ion transport

Citation Formats

Lee, Shinbuhm, Zhang, Wenrui, Khatkhatay, Fauzia, Jia, Quanxi, Wang, Haiyan, and MacManus-Driscoll, Judith L. Strain tuning and strong enhancement of ionic conductivity in SrZrO3-RE2O3 (RE = Sm, Eu, Gd, Dy, and Er) nanocomposite films. United States: N. p., 2015. Web. doi:10.1002/adfm.201404420.
Lee, Shinbuhm, Zhang, Wenrui, Khatkhatay, Fauzia, Jia, Quanxi, Wang, Haiyan, & MacManus-Driscoll, Judith L. Strain tuning and strong enhancement of ionic conductivity in SrZrO3-RE2O3 (RE = Sm, Eu, Gd, Dy, and Er) nanocomposite films. United States. https://doi.org/10.1002/adfm.201404420
Lee, Shinbuhm, Zhang, Wenrui, Khatkhatay, Fauzia, Jia, Quanxi, Wang, Haiyan, and MacManus-Driscoll, Judith L. Fri . "Strain tuning and strong enhancement of ionic conductivity in SrZrO3-RE2O3 (RE = Sm, Eu, Gd, Dy, and Er) nanocomposite films". United States. https://doi.org/10.1002/adfm.201404420. https://www.osti.gov/servlets/purl/1329686.
@article{osti_1329686,
title = {Strain tuning and strong enhancement of ionic conductivity in SrZrO3-RE2O3 (RE = Sm, Eu, Gd, Dy, and Er) nanocomposite films},
author = {Lee, Shinbuhm and Zhang, Wenrui and Khatkhatay, Fauzia and Jia, Quanxi and Wang, Haiyan and MacManus-Driscoll, Judith L.},
abstractNote = {Fast ion transport channels at interfaces in thin films have attracted great attention due to a range of potential applications for energy materials and devices, for, solid oxide fuel cells, sensors, and memories. Here, it is shown that in vertical nanocomposite heteroepitaxial films of SrZrO3–RE2O3 (RE = Sm, Eu, Gd, Dy, and Er) the ionic conductivity of the composite can be tuned and strongly enhanced using embedded, stiff, and vertical nanopillars of RE2O3. With increasing lattice constant of RE2O3 from Er2O3 to Sm2O3, it is found that the tensile strain in the SrZrO3 increases proportionately, and the ionic conductivity of the composite increases accordingly, by an order of magnitude. Lastly, the results here conclusively show, for the first time, that strain in films can be effectively used to tune the ionic conductivity of the materials.},
doi = {10.1002/adfm.201404420},
url = {https://www.osti.gov/biblio/1329686}, journal = {Advanced Functional Materials},
issn = {1616-301X},
number = 27,
volume = 25,
place = {United States},
year = {2015},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 19 works
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Works referenced in this record:

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    Equilibrium oxygen storage capacity of ultrathin CeO2-δ depends non-monotonically on large biaxial strain
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    Strongly enhanced oxygen ion transport through samarium-doped CeO2 nanopillars in nanocomposite films
    journal, October 2015


    Large polarization and dielectric response in epitaxial SrZrO 3 films
    journal, January 2016


    Enhanced magnetic properties in epitaxial self-assembled vertically aligned nanocomposite (Pr 0.5 Ba 0.5 MnO 3 ) 0.5 :(CeO 2 ) 0.5 thin films
    journal, January 2016


    Tuning magnetic anisotropy in Co–BaZrO 3 vertically aligned nanocomposites for memory device integration
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    The role of oxide interfaces in highly confined electronic and ionic conductors
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    Determining interface structures in vertically aligned nanocomposite films
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