Electrical properties of cerium fluoride thin films

Arun Kumar Dorai, S. Selvasekarapandian, Nithya Hellar, Sakunthala Ayyasamy, Hema Muthusamy

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

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 languageEnglish
Pages (from-to)481-486
Number of pages6
JournalIonics
Volume16
Issue number6
DOIs
Publication statusPublished - 2010 Jul 1
Externally publishedYes

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)

Fingerprint Dive into the research topics of 'Electrical properties of cerium fluoride thin films'. Together they form a unique fingerprint.

Cite this