Electrical properties of cerium fluoride thin films

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

doi:10.1007/s11581-010-0437-y

Electrical properties of cerium fluoride thin films

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

Research output: Contribution to journal › Article › peer-review

12 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 language	English
Pages (from-to)	481-486
Number of pages	6
Journal	Ionics
Volume	16
Issue number	6
DOIs	https://doi.org/10.1007/s11581-010-0437-y
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)

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10.1007/s11581-010-0437-y

Cite this

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AU - Dorai, Arun Kumar

AU - Selvasekarapandian, S.

AU - Hellar, Nithya

AU - Ayyasamy, Sakunthala

AU - Muthusamy, Hema

PY - 2010/7/1

Y1 - 2010/7/1

N2 - 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.

AB - 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.

KW - Cerium fluoride

KW - Conductivity

KW - Electrical properties

KW - Oxygen sensor

KW - Thin film

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Electrical properties of cerium fluoride thin films

Abstract

Keywords

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