Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 152, Issue 2, Pages 235-240Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2010.12.014
Keywords
Photostimulation; Ozone sensor; Indium oxide nanoparticles; LED; Cross response; Reproducibility
Funding
- Fraunhofer Research Grants
- Deutsche Forschungsgemeinschaft (DFG) [SPP 1386/1]
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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. (C) 2010 Elsevier B.V. All rights reserved.
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