Journal ArticleDOI
Structure and thickness-dependent gas sensing responses to NO2 under UV irradiation for the multilayered ZnO micro/nanostructured porous thin films.
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TLDR
It has been found that under UV irradiation, the responses of the ZnO porous thin films to NO2 increase upto the maxima with the rising film thickness, which is of importance in design and development of the light illuminating-typed gas sensing devices with high performances.About:
This article is published in Journal of Colloid and Interface Science.The article was published on 2017-10-01. It has received 41 citations till now. The article focuses on the topics: Layer by layer & Light intensity.read more
Citations
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Journal ArticleDOI
Electronic Noses: From Advanced Materials to Sensors Aided with Data Processing
Wenwen Hu,Liangtian Wan,Yingying Jian,Cong Ren,Ke Jin,Su Xinghua,Xiaoxia Bai,Hossam Haick,Hossam Haick,Ming-Shui Yao,Weiwei Wu +10 more
TL;DR: Three main elements are investigated and presented, with an emphasis on the emerging sensors and algorithm of the artificial neural network in the relevant fields, which is the building block of e‐nose through mimicking the olfactory receptors.
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Room-Temperature Gas Sensors Under Photoactivation: From Metal Oxides to 2D Materials
TL;DR: This review provides an overview of the utilization of photoactivated nanomaterials in gas sensing field and excellent gas sensing performance of emerging two-dimensional materials-based sensors under light illumination is discussed in details with proposed gas sensing mechanism.
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Room-temperature gas sensors based on ZnO nanorod/Au hybrids: Visible-light-modulated dual selectivity to NO2 and NH3
TL;DR: The presently developed light modulation strategy provides an alternative approach to highly-selective and dual-functional gas sensors operating at room temperature and contributes to the opposite direction of electron transfer between ZnO and Au nanoparticles in dark and under visible-light illumination.
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Review of ZnO-based nanomaterials in gas sensors
TL;DR: ZnO-based gas sensors have been widely used due to fast response, low detection limit, high selectivity, reliable performance and low manufacturing cost as discussed by the authors, however, their sensitivity and selectivity are low.
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Light-Activated Metal Oxide Gas Sensors: A Review
TL;DR: It is pointed out that the main challenge faced by light-activated gas sensors is their low optical response, and the feasibility of using localized surface plasmon resonance to solve this drawback is analyzed.
References
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Journal ArticleDOI
Extreme oxygen sensitivity of electronic properties of carbon nanotubes
TL;DR: The results, although demonstrating that nanotubes could find use as sensitive chemical gas sensors, likewise indicate that many supposedly intrinsic properties measured on as-prepared nanotube may be severely compromised by extrinsic air exposure effects.
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The surface and materials science of tin oxide
Matthias Batzill,Ulrike Diebold +1 more
TL;DR: A review of surface science studies of single crystal surfaces, but selected studies on powder and polycrystalline films are also incorporated in order to provide connecting points between surface sciences studies with the broader field of materials science of tin oxide as discussed by the authors.
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Electronic nose: current status and future trends.
TL;DR: This research presents a meta-analysis of 126 existing and new technologies in the gas chromatography field, and some new technologies that are being developed, as well as suggestions for further studies.
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Oxide semiconductor gas sensors
TL;DR: In this paper, the three key requirements of sensor design are determined by considering each of these three key factors: selection of a base oxide with high mobility of conduction electrons and satisfactory stability (transducer function), selection of foreign receptor which enhances surface reactions or adsorption of target gas (receptor function), and fabrication of a highly porous, thin sensing body (utility factor).
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Miniaturized gas ionization sensors using carbon nanotubes
TL;DR: The fabrication and successful testing of ionization microsensors featuring the electrical breakdown of a range of gases and gas mixtures at carbon nanotube tips are reported, enabling compact, battery-powered and safe operation of such sensors.