Biaxially textured CeO2 seed layers and thin films on Ni substrates by chemical solution deposition using inorganic cerium nitrate as a precursor
✍ Scribed by S. Chen; S.S. Wang; K. Shi; Q. Liu; Z. Han
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 239 KB
- Volume
- 419
- Category
- Article
- ISSN
- 0921-4534
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✦ Synopsis
A solution process was used for the epitaxial growth of CeO 2 seed layers and thin films on Ni substrate material using inorganic cerium nitrate as a precursor. The precursor solution was prepared by dissolving cerium nitrate in acetyl acetone, 2-methoxyethanol and glycol. The CeO 2 thin films, spin coated on Ni substrates, were annealed at 500-1100 °C in a 4%H 2 -Ar atmosphere. X-ray diffraction showed a strong c-axis orientation of the CeO 2 thin films on the Ni {0 0 1} (1 0 0) substrate. Out-of-plane and in-plane texture analysis, as well as pole-figure analysis, revealed a cube-on-cube texture in the films. For CeO 2 seed layers, scanning electron microscope investigations showed a discontinuous structure, whereas CeO 2 thin films possessed a continuous dense structure. A CeO 2 buffer layer grown on a CeO 2 seed layer showed an enhancement in the biaxial texture.