| Autor: |
Dorai, Arun, Selvasekarapandian, S., Hellar, Nithya, Ayyasamy, Sakunthala, Muthusamy, Hema |
| Zdroj: |
Ionics; Dec2010, Vol. 16 Issue 6, p481-486, 6p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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