Journal
SOLID OXIDE FUEL CELLS 13 (SOFC-XIII)
Volume 57, Issue 1, Pages 1059-1068Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/05701.1059ecst
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- Italian Ministry of Research and Education within the program Programmi di Ricerca Scientifica di Rilevante Interesse Nazionale-PRINAnno [2010KHLKFC]
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Epitaxial heterostructures consisting of an yttrium doped barium cerate (BCY) layer sandwiched between two yttrium doped barium zirconate (BZY) thin layers have been deposited on insulating (001) MgO substrates by pulsed laser deposition. The first BZY layer was aimed at improving the lattice match with the MgO substrate, the second at protecting the BCY layer. Ionic conductivity has been studied in the 300 - 600 degrees C temperature range as a function of the BCY thickness. Due to the absence of blocking grain boundaries, heterostructures showed a conductivity larger than that of BCY pellets sintered under optimized conditions.
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