Microstructure and ionic conductivity of LLTO thin films: Influence of different substrates and excess lithium in the target
Frederic Aguesse
1
,
Vladimir Roddatis
1
,
Jaume Roqueta
2
,
Pablo Garcia
2
,
Jose Santiso
2
,
John Kilner
4
1
CIC EnergiGUNE, Parque Tecnológico de Alava, Albert Einstein 48, Miñano 01510, Spain
|
2
3
Publication type: Journal Article
Publication date: 2015-04-01
scimago Q2
wos Q2
SJR: 0.672
CiteScore: 5.3
Impact factor: 3.3
ISSN: 01672738, 18727689
General Chemistry
Condensed Matter Physics
General Materials Science
Abstract
The deposition of single phase Li3xLa2/3 − xTiO3 (LLTO) thin films remains very challenging. The growth of the perovskite phase is in competition with the insulating La2Ti2O7 phase when prepared at high oxygen pressure by PLD. Nevertheless, we have achieved epitaxial growth of LLTO on different (001) oriented substrates such as LaAlO3, SrTiO3 and MgO despite a large lattice mismatch of up to + 8.8%. We also determined the percentage of lithium excess in the target necessary to reach a maximum ionic conductivity. However, the presence of the blocking La2Ti2O7 phase strongly hinders the lithium ion migration and reduces the total conductivity compared to bulk properties.
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Total citations:
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Citations from 2025:
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GOST
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Aguesse F. et al. Microstructure and ionic conductivity of LLTO thin films: Influence of different substrates and excess lithium in the target // Solid State Ionics. 2015. Vol. 272. pp. 1-8.
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Aguesse F., Roddatis V., Roqueta J., Garcia P., Pergolesi D., Santiso J., Kilner J. Microstructure and ionic conductivity of LLTO thin films: Influence of different substrates and excess lithium in the target // Solid State Ionics. 2015. Vol. 272. pp. 1-8.
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TY - JOUR
DO - 10.1016/j.ssi.2014.12.005
UR - https://doi.org/10.1016/j.ssi.2014.12.005
TI - Microstructure and ionic conductivity of LLTO thin films: Influence of different substrates and excess lithium in the target
T2 - Solid State Ionics
AU - Aguesse, Frederic
AU - Roddatis, Vladimir
AU - Roqueta, Jaume
AU - Garcia, Pablo
AU - Pergolesi, Daniele
AU - Santiso, Jose
AU - Kilner, John
PY - 2015
DA - 2015/04/01
PB - Elsevier
SP - 1-8
VL - 272
SN - 0167-2738
SN - 1872-7689
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2015_Aguesse,
author = {Frederic Aguesse and Vladimir Roddatis and Jaume Roqueta and Pablo Garcia and Daniele Pergolesi and Jose Santiso and John Kilner},
title = {Microstructure and ionic conductivity of LLTO thin films: Influence of different substrates and excess lithium in the target},
journal = {Solid State Ionics},
year = {2015},
volume = {272},
publisher = {Elsevier},
month = {apr},
url = {https://doi.org/10.1016/j.ssi.2014.12.005},
pages = {1--8},
doi = {10.1016/j.ssi.2014.12.005}
}