Title
UV effect on <tex>$NO_{2}$</tex> sensing properties of nanocrystalline <tex>$In_{2}O_{3}$</tex> UV effect on <tex>$NO_{2}$</tex> sensing properties of nanocrystalline <tex>$In_{2}O_{3}$</tex>
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Lausanne ,
Subject
Physics
Chemistry
Source (journal)
Sensors and actuators : B : chemical. - Lausanne
Volume/pages
231(2016) , p. 491-496
ISSN
0925-4005
ISI
000374330900055
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Nanocrystalline indium oxide films with extremely small grains in range of 7-40 nm are prepared by sol-gel method. The influence of grain size on the sensitivity of indium oxide to nitrogen dioxide in low concentration at room temperature is investigated under the UV illumination and without illumination. The sensitivity increases with the decrease of grain sizes when In2O3 is illuminated while in the dark In2O3 with intermediate grain size exhibits the highest response. An explanation of the different behavior of the In2O3 with different grain size sensitivity to NO2 under illumination and in the dark is proposed. We demonstrate that pulsed illumination may be used for NO2 detection at room temperature that significantly reduces the power consumption of sensor. (C) 2016 Elsevier B.V. All rights reserved.
E-info
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http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000374330900055&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
https://repository.uantwerpen.be/docman/iruaauth/47096b/133630.pdf
Handle