Graphene SOI CMOS sensors for detection of PPB levels of NO2 in air

J. W. Gardner; Matthew Cole; A De Luca; P Clement; E. Llobet; S. Z. Ali; F. Udrea

doi:10.1109/Transducers.2013.6627203

Graphene SOI CMOS sensors for detection of PPB levels of NO2 in air

J. W. Gardner, Matthew Cole, A De Luca, P Clement, E. Llobet, S. Z. Ali, F. Udrea

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

3 Citations (SciVal)

Abstract

There is considerable demand for sensors that are capable of detecting ultra-low concentrations (sub-PPM) of toxic gases in air. Of particular interest are NO 2 and CO that are exhaust products of internal combustion engines. Electrochemical (EC) sensors are widely used to detect these gases and offer the advantages of low power, good selectivity and temporal stability. However, EC sensors are large (1 cm 3 ), hand-made and thus expensive ($25). Consequently, they are unsuitable for the low-cost automotive market that demands units for less than $10. One alternative technology is SnO 2 or WO 3 resistive gas sensors that are fabricated in volume today using screen-printed films on alumina substrates and operate at 400°C. Unfortunately, they suffer from several disadvantages: power consumption is high 200 mW; reproducibility of the sensing element is poor; and cross-sensitivity is high.

Original language	English
Title of host publication	2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
Pages	2055-2058
Number of pages	4
DOIs	https://doi.org/10.1109/Transducers.2013.6627203
Publication status	Published - 1 Dec 2013

Keywords

chemical sensor
gas sensor
Graphene

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10.1109/Transducers.2013.6627203

Cite this

Gardner, J. W., Cole, M., De Luca, A., Clement, P., Llobet, E., Ali, S. Z., & Udrea, F. (2013). Graphene SOI CMOS sensors for detection of PPB levels of NO2 in air. In 2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013 (pp. 2055-2058) https://doi.org/10.1109/Transducers.2013.6627203

Graphene SOI CMOS sensors for detection of PPB levels of NO2 in air. / Gardner, J. W.; Cole, Matthew; De Luca, A et al.
2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013. 2013. p. 2055-2058.

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Gardner, JW, Cole, M, De Luca, A, Clement, P, Llobet, E, Ali, SZ & Udrea, F 2013, Graphene SOI CMOS sensors for detection of PPB levels of NO2 in air. in 2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013. pp. 2055-2058. https://doi.org/10.1109/Transducers.2013.6627203

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abstract = "There is considerable demand for sensors that are capable of detecting ultra-low concentrations (sub-PPM) of toxic gases in air. Of particular interest are NO 2 and CO that are exhaust products of internal combustion engines. Electrochemical (EC) sensors are widely used to detect these gases and offer the advantages of low power, good selectivity and temporal stability. However, EC sensors are large (1 cm 3 ), hand-made and thus expensive ($25). Consequently, they are unsuitable for the low-cost automotive market that demands units for less than $10. One alternative technology is SnO 2 or WO 3 resistive gas sensors that are fabricated in volume today using screen-printed films on alumina substrates and operate at 400°C. Unfortunately, they suffer from several disadvantages: power consumption is high 200 mW; reproducibility of the sensing element is poor; and cross-sensitivity is high. ",

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Graphene SOI CMOS sensors for detection of PPB levels of NO2 in air

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