The materials exploited for the development of gas conductometric sensors are often n-type semiconductors as in the case, e.g., of SnO2. Several materials studied in the last years for this application behave as p-type semiconductors (e.g. CuO, Cr2O3, K- or Ag-Hollandites). In this work the authors present a novel surface state model for p-type, large grained, thick film materials, with a specific reference to K- or Ag-Hollandites, which accounts for the material response to CO in dry and humid N-2, and in dry and humid air. A reliable and compact model of this type is of the utmost utility from several points of view, including the development of measurement systems based on gas sensors. The availability of a simulation tool able to accurately predict the sensor behavior enables the replacement of experimental tuning with simulations, and can significantly speed-up sensor-based system development and guarantee better performance.

Addabbo, T., Bertocci, F., Fort, A., Mugnaini, M., Rocchi, S., & Vignoli, V. (2013). Surface State Model for Metal Oxide p-Type Conductometric CO Sensors. In I2MTC 2013 Proceedings (pp.88-92). New York : IEEE [10.1109/I2MTC.2013.6555387].

Surface State Model for Metal Oxide p-Type Conductometric CO Sensors

ADDABBO, TOMMASO;BERTOCCI, FRANCESCO;FORT, ADA;MUGNAINI, MARCO;ROCCHI, SANTINA;VIGNOLI, VALERIO
2013

Abstract

The materials exploited for the development of gas conductometric sensors are often n-type semiconductors as in the case, e.g., of SnO2. Several materials studied in the last years for this application behave as p-type semiconductors (e.g. CuO, Cr2O3, K- or Ag-Hollandites). In this work the authors present a novel surface state model for p-type, large grained, thick film materials, with a specific reference to K- or Ag-Hollandites, which accounts for the material response to CO in dry and humid N-2, and in dry and humid air. A reliable and compact model of this type is of the utmost utility from several points of view, including the development of measurement systems based on gas sensors. The availability of a simulation tool able to accurately predict the sensor behavior enables the replacement of experimental tuning with simulations, and can significantly speed-up sensor-based system development and guarantee better performance.
978-1-4673-4621-4
Addabbo, T., Bertocci, F., Fort, A., Mugnaini, M., Rocchi, S., & Vignoli, V. (2013). Surface State Model for Metal Oxide p-Type Conductometric CO Sensors. In I2MTC 2013 Proceedings (pp.88-92). New York : IEEE [10.1109/I2MTC.2013.6555387].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11365/45255
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