A novel single chip thin film metal oxide array

Wöllenstein, Jürgen; Plaza, J.A.; Cané, C.; Yao, Min; Böttner, H.; Tuller, Harry L.

doi:10.1016/s0925-4005(03)00218-1

Cited by 121 publications

(70 citation statements)

References 13 publications

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“…The three sensing layers were deposited on an IDT platinum electrode and were successfully sintered at 1100 °C for 2 h. Overall the gas sensor array size is 1.5 cm 2 and the distance between the sensing layers is 100 μm. Although the other literatures did not precisely specify the distance between the sensing layers, their sizes were in the range of about 0.5-1 mm [14][15][16]. Proposed design of gas sensor array will contribute to miniaturizing the sensor array.…”

Section: Discussionmentioning

confidence: 99%

Batch-processed semiconductor gas sensor array for the selective detection of NOx in automotive exhaust gas

Jang

Kim

2016

Micro and Nano Syst Lett

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This paper reports on a semiconductor gas sensor array to detect nitrogen oxides (NO x ) in automotive exhaust gas. The proposed semiconductor gas sensor array consisted of one common electrode and three individual electrodes to minimize the size of the sensor array, and three sensing layers [TiO 2 + SnO 2 (15 wt%), SnO 2 , and Ga 2 O 3 ] were deposited using screen printing. In addition, sensing materials were sintered under the same conditions in order to take advantage of batch processing. The sensing properties of the proposed sensor array were verified by experimental measurements, and the selectivity improved by using pattern recognition.

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Section: Discussionmentioning

confidence: 99%

Batch-processed semiconductor gas sensor array for the selective detection of NOx in automotive exhaust gas

Jang

Kim

2016

Micro and Nano Syst Lett

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“…Any metabolite of fungi that can elicit toxic effects is called a mycotoxin. Originally, mycotoxins produced by fungi grown on food were investigated for their health effects upon ingestion [14][15][16]. This is commonly done by sampling these volatile compounds on carbon-based or TENAX sampling tubes for several hours and performing combined gas chromatography/mass spectrometry (GC-MS) after elution/desorption of the compounds from the sampling tubes.…”

Section: (A) Mould Detection Methodsmentioning

confidence: 99%

Two underestimated threats in food transportation: mould and acceleration

Janssen

Pankoke²,

Klus³

et al. 2014

Phil. Trans. R. Soc. A.

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Two important parameters are often neglected in the monitoring of perishable goods during transport: mould contamination of fresh food and the influence of acceleration or vibration on the quality of a product. We assert the claim that it is necessary to focus research on these two topics in the context of intelligent logistics in this opinion paper. Further, the technical possibilities for future measurement systems are discussed. By measuring taste deviations, we verified the effect on the quality of beer at different vibration frequencies. The practical importance is shown by examining transport routes and market shares. The general feasibility of a mobile mould detection system is established by examining the measurement resolution of semiconductor sensors for mould-related gases. Furthermore, as an alternative solution, we present a concept for a miniaturized and automated culture-medium-based system. Although there is a lack of related research to date, new efforts can make a vital contribution to the reduction of losses in the logistic chains for several products.

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“…Semiconducting metal oxide sensors have been widely studied because of their small dimensions, low cost, and high compatibility with microelectronics. ZnO gas sensors of various forms, such as thick films [17], thin films [18], heterojunctions [19], nanoparticles [20], and nanotubes [21], have all been demonstrated. The oxygen-related gas-sensing mechanism involves the absorption of oxygen molecules on the oxide surface to generate chemisorbed oxygen species (O 2 − , O 2− , O − ) by capturing electrons from the conductance band, making the oxide surface highly resistive.…”

Section: Introductionmentioning

confidence: 99%

UV Illumination Room-Temperature ZnO Nanoparticle Ethanol Gas Sensors

Chang

Chen

2012

ISRN Nanotechnology

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Zinc oxide (ZnO) nanoparticle gas sensor was formed by spin coating. We annealed the film at 400, 600, and 800• C for 1 hour in air to make gas sensor. The responses of gas sensor to ethanol with UV light illumination were investigated. It could be observed that the ZnO nanoparticle film annealing at 800• C has the highest sensitivity. It can be attributed to the defects of ZnO nanoparticle film annealing at 800• C much more than other annealing temperatures. The study shows that the ZnO nanoparticles have potential applications as RT ethanol sensors.

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A novel single chip thin film metal oxide array

Cited by 121 publications

References 13 publications

Batch-processed semiconductor gas sensor array for the selective detection of NOx in automotive exhaust gas

Batch-processed semiconductor gas sensor array for the selective detection of NOx in automotive exhaust gas

Two underestimated threats in food transportation: mould and acceleration

UV Illumination Room-Temperature ZnO Nanoparticle Ethanol Gas Sensors

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