Abstract
Thin films of ionic conductors have low internal resistance. Hence, it could be used as an electrolyte material in sensors to operate at ambient temperatures. Cerium fluoride, a unipolar fluoride ion conductor, has got a different application in electrochemical sensor. In the present work, cerium fluoride thin films have been prepared by physical vapor deposition method and their electrical properties are studied. X-ray diffraction studies reveal the polycrystalline nature of the prepared thin films and the structure of the material. Scanning electron microscopy (SEM) images show grain-like structures. Conductivity analysis of the thin films has been studied by ac impedance analysis and the maximum conductivity value is found to be 1.04 × 10-6 S cm-1. The impedance spectra emphasize intergranular conduction in the prepared thin films.
Original language | English |
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Pages (from-to) | 481-486 |
Number of pages | 6 |
Journal | Ionics |
Volume | 16 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2010 Jul 1 |
Externally published | Yes |
Keywords
- Cerium fluoride
- Conductivity
- Electrical properties
- Oxygen sensor
- Thin film
ASJC Scopus subject areas
- Chemical Engineering(all)
- Materials Science(all)
- Engineering(all)
- Physics and Astronomy(all)