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<div class="csl-entry">Prades, J. D., Jimenez-Diaz, R., Hernandez-Ramirez, F., Barth, S. C., Cirera, A., Romano-Rodriguez, A., Mathur, S., & Morante, J. R. (2009). Equivalence between thermal and room temperature UV light-modulated responses of gas sensors based on individual SnO₂ nanowires. <i>Sensors and Actuators B: Chemical</i>, <i>140</i>(2), 337–341. https://doi.org/10.1016/j.snb.2009.04.070</div>
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dc.identifier.issn
0925-4005
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/168319
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dc.description.abstract
We demonstrate that illuminating metal oxide gas sensors with ultra-violet light is a viable alternative not only to activate but also to modulate their response towards oxidizing gases. Here, the performance of individual monocrystalline SnO₂ nanowires to NO₂ at room temperature as function of the flux and the energy of photons is studied. The results reveal that nearly identical responses, similar to thermally activated sensor surfaces, can be achieved by choosing the optimal illumination conditions. On the basis these results, a qualitative model to explain the response of these sensors towards oxidizing gases is proposed. This finding paves the way to the development of conductometric gas sensors operating at room temperature.
en
dc.language.iso
en
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dc.publisher
ELSEVIER SCIENCE SA
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dc.relation.ispartof
Sensors and Actuators B: Chemical
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dc.subject
Electrical and Electronic Engineering
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dc.subject
Condensed Matter Physics
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dc.subject
Electronic, Optical and Magnetic Materials
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dc.subject
Instrumentation
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dc.subject
Surfaces, Coatings and Films
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dc.subject
Materials Chemistry
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dc.subject
Metals and Alloys
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dc.subject
Metal oxide
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dc.subject
Nanowire
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dc.subject
SnO2
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dc.subject
Monocrystalline
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dc.subject
Photoactivation
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dc.subject
Gas Sensor
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dc.title
Equivalence between thermal and room temperature UV light-modulated responses of gas sensors based on individual SnO₂ nanowires