Array of thick film sensors for atmospheric pollutant monitoring

Maria Christina Carotta; Giuliano Martinelli; Luigi Crema; Massimiliano Gallana; Marco Merli; Giovanna Ghiotti; Enrico Traversa

doi:10.1016/S0925-4005(00)00439-1

Array of thick film sensors for atmospheric pollutant monitoring

Maria Christina Carotta, Giuliano Martinelli, Luigi Crema, Massimiliano Gallana, Marco Merli, Giovanna Ghiotti, Enrico Traversa

Research output: Contribution to journal › Conference article › peer-review

61 Scopus citations

Abstract

Chemical routes such as sol-gel techniques and thermal decomposition of heteronuclear complexes have been used to prepare nanosized powders of n-type (SnO₂, TiO₂ and In₂O₃) and p-type (LaFeO₃) semiconducting oxides. Thick film gas sensors have been fabricated using these powders, printed on laser pre-cut 96% alumina substrates, each 2 × 2 mm element being provided with a heater, Au interdigitated contacts and a Pt-100 resistor for controlling the operating temperature. The films have been fired at different temperatures suitable to keep the grain size at the nanometer level. Electrical responses to some major polluting gases (CO, NO, NO₂ and O₃) obtained in the field have been compared with international standard analytical techniques.

Original language	English (US)
Pages (from-to)	1-8
Number of pages	8
Journal	Sensors and Actuators, B: Chemical
Volume	68
Issue number	1
DOIs	https://doi.org/10.1016/S0925-4005(00)00439-1
State	Published - Aug 25 2000
Externally published	Yes
Event	Proceedings of Eurosensors XIII - The Hague, Neth Duration: Sep 12 1999 → Sep 15 1999

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/S0925-4005(00)00439-1

Cite this

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abstract = "Chemical routes such as sol-gel techniques and thermal decomposition of heteronuclear complexes have been used to prepare nanosized powders of n-type (SnO2, TiO2 and In2O3) and p-type (LaFeO3) semiconducting oxides. Thick film gas sensors have been fabricated using these powders, printed on laser pre-cut 96% alumina substrates, each 2 × 2 mm element being provided with a heater, Au interdigitated contacts and a Pt-100 resistor for controlling the operating temperature. The films have been fired at different temperatures suitable to keep the grain size at the nanometer level. Electrical responses to some major polluting gases (CO, NO, NO2 and O3) obtained in the field have been compared with international standard analytical techniques.",

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AU - Carotta, Maria Christina

AU - Martinelli, Giuliano

AU - Crema, Luigi

AU - Gallana, Massimiliano

AU - Merli, Marco

AU - Ghiotti, Giovanna

AU - Traversa, Enrico

PY - 2000/8/25

Y1 - 2000/8/25

N2 - Chemical routes such as sol-gel techniques and thermal decomposition of heteronuclear complexes have been used to prepare nanosized powders of n-type (SnO2, TiO2 and In2O3) and p-type (LaFeO3) semiconducting oxides. Thick film gas sensors have been fabricated using these powders, printed on laser pre-cut 96% alumina substrates, each 2 × 2 mm element being provided with a heater, Au interdigitated contacts and a Pt-100 resistor for controlling the operating temperature. The films have been fired at different temperatures suitable to keep the grain size at the nanometer level. Electrical responses to some major polluting gases (CO, NO, NO2 and O3) obtained in the field have been compared with international standard analytical techniques.

AB - Chemical routes such as sol-gel techniques and thermal decomposition of heteronuclear complexes have been used to prepare nanosized powders of n-type (SnO2, TiO2 and In2O3) and p-type (LaFeO3) semiconducting oxides. Thick film gas sensors have been fabricated using these powders, printed on laser pre-cut 96% alumina substrates, each 2 × 2 mm element being provided with a heater, Au interdigitated contacts and a Pt-100 resistor for controlling the operating temperature. The films have been fired at different temperatures suitable to keep the grain size at the nanometer level. Electrical responses to some major polluting gases (CO, NO, NO2 and O3) obtained in the field have been compared with international standard analytical techniques.

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Array of thick film sensors for atmospheric pollutant monitoring

Abstract

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