NDLI: Room temperature conductometric gas sensors based on metal oxide nanowires and nanocrystals

Content Provider	IEEE Xplore Digital Library
Author	Manzanares, M. Prades, J.D. Cirera, A. Andreu, T. Hernandez-Ramirez, F. Jimenez-Rodriguez, R. Romano-Rodriguez, A. Morante, J.R.
Copyright Year	2009
Description	Author affiliation: EME/XaRMAE/IN2 UB, Departament d'Electrònica, Universitat de Barcelona, SPAIN (Manzanares, M.; Prades, J.D.; Cirera, A.; Andreu, T.; Hernandez-Ramirez, F.; Jimenez-Rodriguez, R.; Romano-Rodriguez, A.) \|\| EME/XaRMAE/IN2 UB, Departament d'Electrònica, Universitat de Barcelona, SPAIN; Institut de Recerca en Energia de Catalunya (IREC), SPAIN (Morante, J.R.)
Abstract	The conductometric response of metal oxide nanowires and nanocrystals to oxidizing molecules at room temperature and under UV illumination is studied. We demonstrate that UV illumination induces an electron-hole pair generation as well as a surface oxygen's desorption leading to a reduced surface that is highly reactive to oxidizing species. Based on these mechanisms, we present room temperature conductometric sensors based on nanoparticles and nanowires. The electrical response of these devices under different illumination conditions is theoretically modeled and predicted. The interfering effect of other gases, such as humidity, is also analyzed.
Starting Page	320
Ending Page	322
File Size	368132
Page Count	3
File Format	PDF
ISBN	9781424428380
DOI	10.1109/SCED.2009.4800496
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-02-11
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature sensors Gas detectors Nanowires Nanocrystals Lighting Zinc oxide Humidity Photoconductivity Mesoporous materials Thermal sensors
Content Type	Text
Resource Type	Article

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