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Open AccessProceedings Article

Fluctuation Enhanced Gas Sensing with UV-irradiated Au-Nanoparticle-Decorated WO3-Nanowire Films

Maciej Trawka, +6 more
- pp 1-5
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TLDR
In this paper, WO3 nanowires decorated with gold nanoparticles (AuNPs) were used in resistive gas sensor devices to detect ethanol by use of fluctuation enhanced sensing (FES).
Abstract: 
WO3 nanowires (WO3-NWs) decorated with gold nanoparticles (AuNPs) were utilized in resistive gas sensor devices to detect ethanol by use of fluctuation enhanced sensing (FES). The experimental system records both DC resistance and fluctuations of the sensing film. Our data verify that the sensitivity and selectivity of the gas sensor are improved by applying FES when the sensor is stimulated with a combination of UV light and heating. We conclude that UV light can produce improved gas sensing at low operating temperatures for the investigated AuNPdecorated WO3-NWs films.

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Determination of gas mixture components using fluctuation enhanced sensing and the ls-svm regression algorithm

Łukasz Lentka, +4 more
- 01 Sep 2015 - 
TL;DR: In this article, the effectiveness of determining gas concentrations by using a prototype WO3 resistive gas sensor together with fluctuation enhanced sensing was analyzed by using fluctuation-enhanced sensing.
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UV-Light-Induced Fluctuation Enhanced Sensing by WO 3 -Based Gas Sensors

Maciej Trawka, +7 more
- 01 Jul 2016 - 
TL;DR: In this article, the WO3-based gas sensors were investigated under UV-light irradiation and at different working temperatures with the object of achieving superior sensitivity and selectivity, and the data were taken in synthetic air, ethanol, nitrogen dioxide, and mixtures of these gases.

Automated system for fluctuation enhanced gas sensing

Maciej Trawka, +2 more
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Energy requirements for methods improving gas detection by modulating physical properties of resistive gas sensors

Maciej Trawka, +1 more
TL;DR: In this article, the authors consider how much energy has to be supplied to utilize temperature modulation or UV light irradiation for the layers exhibiting photocatalytic effect, and what kind of additional information can be gathered.
References
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Journal ArticleDOI

Extracting information from noise spectra of chemical sensors: single sensor electronic noses and tongues

Laszlo B. Kish, +2 more
- 15 Nov 2000 - 
TL;DR: In this paper, it was shown that even one single sensor may be sufficient for realizing an electronic nose or tongue, which can utilize noise data taken at the output of a chemical sensor.
Journal ArticleDOI

Single‐Step Deposition of Au‐ and Pt‐Nanoparticle‐Functionalized Tungsten Oxide Nanoneedles Synthesized Via Aerosol‐Assisted CVD, and Used for Fabrication of Selective Gas Microsensor Arrays

Stella Vallejos, +8 more
- 13 Mar 2013 - 
TL;DR: In this article, a single-step method via aerosol-assisted chemical vapour deposition, onto microelectromechanical system (MEMS)-based gas-sensor platforms is demonstrated to be an effective route to incorporate metal nanoparticles (NP) or combinations of metal NPs into nanostructured materials, resulting in an attractive way of tuning functionality in metal oxides (MOX).
Journal ArticleDOI

Gas Response Control Through Structural and Chemical Modification of Metal Oxide Films: State of the Art and Approaches

Ghenadii Korotcenkov
- 14 Mar 2006 - 
TL;DR: In this paper, the structural and physical properties of nanoscaled metal oxide films (SnO2 and In2O3) aimed for solid state chemical sensors were analyzed and the methods suitable for control of these structural-and physical-chemical parameters have been discussed.
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Room temperature hydrogen sensors based on metal decorated WO3 nanowires

Jarmo Kukkola, +8 more
- 01 Sep 2013 - 
TL;DR: The emerging hydrogen economy has created a demand for the development of improved hydrogen sensors operating at room temperature as mentioned in this paper, and in this work, we present hydrogen detectors based on metal decorat...
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Sensing performance of palladium-functionalized WO3 nanowires by a drop-casting method

F. Chávez, +7 more
- 15 Jun 2013 - 
TL;DR: In this paper, a simple way to functionalize tungsten oxide nanowires (WO3-NWs) using a saturated palladium chloride (PdCl2) solution deposited by a drop-casting method was presented.