Photon stimulated sensor based on indium oxide nanoparticles I: Wide-concentration-range ozone monitoring in air

Ozone sensors are of great demand for monitoring high-concentration ozone for industrial applications and low-concentration ozone for protecting people's health, although commercial ozone sensors are limited in their detection range. In this work, it is demonstrated that compact energy-saving p...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2011-03, Vol.152 (2), p.235-240
Main Authors: Wang, Ch.Y., Becker, R.W., Passow, T., Pletschen, W., Köhler, K., Cimalla, V., Ambacher, O.
Format: Article
Language:English
Subjects:
Actuators
air
Carbon dioxide
Carbon monoxide
Cross response
energy conservation
hysteresis
indium
Indium oxide nanoparticles
Indium oxides
industrial applications
LED
Monitoring
Nanoparticles
nitrogen dioxide
Ozone
Ozone sensor
people
Photons
Photostimulation
Reproducibility
Sensors
temperature
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Summary:Ozone sensors are of great demand for monitoring high-concentration ozone for industrial applications and low-concentration ozone for protecting people's health, although commercial ozone sensors are limited in their detection range. In this work, it is demonstrated that compact energy-saving photostimulated ozone sensors based on indium oxide nanoparticles can detect ozone with a dynamical range over four orders of magnitude at room temperature. The photostimulated ozone sensor shows a very low cross response to NO2, CO, and CO2. Furthermore, the sensing signal is very reproducible, and no hysteresis effects were found in repeated measurements.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2010.12.014