Response enhancement of sprayed ZnO thin film-based NO2 sensor by indium-doping

Ferro, R.;Rodriguez, J. A.;Bertrand, Patrick;Henry, Marie;Poleunis, Claude
(2006) Revista Mexicana de Fisica — Vol. 52, n° 2, p. 23-25 (2006)

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Authors
  • Ferro, R.
    Author
  • Rodriguez, J. A.
    Author
  • Bertrand, PatrickUCLouvain
    Author
  • Henry, MarieUCLouvain
    Author
  • Poleunis, ClaudeUCLouvain
    Author
Abstract
The development of a sprayed ZnO thin film-based NO2 sensor is reported. The effect of In-doping on the sensor performance is studied. With the addition of 3 wt % of indium nitrate to the spraying solution, a good sensor response to 5 ppm of NO2 at 275 degrees C and an important decrease in the device electrical resistance is obtained. The dependence of the electrical resistance oil temperature in several gas atmospheres is also considered. A possible sensitization mechanism is discussed.
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Ferro, R., Rodriguez, J. A., Bertrand, P., Henry, M., & Poleunis, C. (2006). Response enhancement of sprayed ZnO thin film-based NO2 sensor by indium-doping. Revista Mexicana de Fisica, 52(2), 23-25. https://hdl.handle.net/2078.5/78861 (Original work published 2006)