Abstract
The results of a study of the structure and electrical properties of SrCe0.95Yb0.05O3 thin film protonic conductors are presented. Dense SrCe0.95Yb0.05O3 thin films (∼1000 nm) with grain size in the 30-70 nm range were obtained on Si- and Al2O3-substrates using a polymeric precursor spin coating technique. The electrical conductivity of these thin films has been studied as a function of temperature and correlated with the microstructure. The thin films showed higher electrical conductivity than dense sintered polycrystalline SrCe0.95Yb0.05O3 specimens which had grain size in the micrometer range. This electrical conductivity enhancement has been attributed to the influence of interfacial grain boundary effects in the films. Data are shown for a semiconductor-type hydrogen sensor based on these thin films.
Recommended Citation
I. Kosacki and H. U. Anderson, "The Structure and Electrical Properties of SrCe0.95Yb0.05O3 Thin Film Protonic Conductors," Solid State Ionics, vol. 97, no. 1 thru 4, pp. 429 - 436, Elsevier, May 1997.
The definitive version is available at https://doi.org/10.1016/s0167-2738(97)00078-7
Department(s)
Materials Science and Engineering
Keywords and Phrases
Grain boundary segregation; Impedance spectroscopy; Perovskites; Protonic conductors
International Standard Serial Number (ISSN)
0167-2738
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Elsevier, All rights reserved.
Publication Date
01 May 1997
