期刊
SOLID STATE IONICS
卷 230, 期 -, 页码 16-20出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2012.10.018
关键词
Nanoionics; Pr2NiO4; CeO2; Layer-by-layer structure
资金
- Advanced Low Carbon Technology Research and Development Program (ALCA) from Japan Science Technology
- WPI program from Ministry of Education, Culture, Sports, Science, and Technology, Japan
Pr2Ni0.71Cu0.24Ga0.05O4/Sm0.2Ce0.8O2 (PNCG/SDC) layer-by-layer thin film was prepared by pulsed laser deposition (PLD) method in this study. Dense and uniform PNCG/SDC film was successfully deposited on MgO substrate. Structure of the film was analyzed with secondary ion mass spectroscopy (SIMS). Although small diffusion of cation into MgO substrate was observed, the obtained film consists of PNCG and SDC nano-sized film laminated. The electrical conductivity measurements were performed as a function of layer thickness of PNCG or SDC. The conductivity decreased with decreasing PNCG layer thickness. In contrast, the conductivity increased with decreasing SDC layer thickness. Change in electrical conductivity seems to be related with the change in lattice constant of PNCG and SDC. (c) 2012 Elsevier B.V. All rights reserved.
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