ZnO thick film gas sensors fabrication and its structural and electrical Properties

Authors

  • Ashok Kanade  Department of Electronic-Science, P. V. P. College, Pravaranagar, India
  • Shrikant Gandhe  Department of Electronic-Science, P. V. P. College, Pravaranagar, India
  • Pradeep Dighe  Department of Electronic-Science, P. V. P. College, Pravaranagar, India
  • Arvind Shaligram  Department of Electronic-Science, Savitribai Phule Pune University, Pune, India

Keywords:

Thick film sensor, ZnO, metal oxide thick film, gas sensor

Abstract

In the present work, the ZnO thick films were prepared by a standard screen printing method on alumina substrate. The developed thick films were fired at different temperatures in air atmosphere. The structural and electrical properties were investigated. X-Ray diffraction pattern analysis shows that fabricated films are polycrystalline. Scanning electron microscopy SEM shows that the fabricated ZnO films are granular and porous. The DC resistance of the films was measured by half bridge method in air atmosphere at different temperatures. The films were showing decrease in resistance with increase in temperature indicating semiconductor behavior. The resistivity, activation energy and temperature coefficient of resistance (TCR) are evaluated at different firing temperatures.

References

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International Journal of Scientific Research in Science, Engineering and Technology

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Published

2018-04-30

Issue

Volume 4, Issue 4, March-April-2018

Section

Research Articles

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
Ashok Kanade, Shrikant Gandhe, Pradeep Dighe, Arvind Shaligram "ZnO thick film gas sensors fabrication and its structural and electrical Properties" International Journal of Scientific Research in Science, Engineering and Technology (IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 4, Issue 4, pp.1401-1405, March-April-2018.