A Model for the Operation of a Thin‐Film SnO x Conductance‐Modulation Carbon Monoxide Sensor

Windischmann, H.; Mark, Peter

doi:10.1149/1.2129098

Cited by 370 publications

(116 citation statements)

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“…, and O − is believed to be dominant [34]), and thus SnO 2 will show a high resistance. When ethanol is introduced at moderate temperature, SnO 2 is exposed to the traces of reductive gas.…”

Section: Resultsmentioning

confidence: 99%

Comparative investigation of three types of ethanol sensor based on NiO-SnO2 composite nanofibers

Shen

Xia

et al. 2012

Chin. Sci. Bull.

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NiO-SnO 2 composite nanofibers were synthesized via electrospinning techniques and characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. Three types of sensor were applied to investigate the sensing properties of these nanofibers. Sensors A were fabricated by mixing the nanofibers with deionized water, and then grinding and coating them on ceramic tubes to form indirect heated gas sensors. Microsensors B (with an area of 600 μm×200 μm) were formed by spinning nanofibers on Si substrates with Pt signal electrodes and Pt heaters. Sensors C were fabricated by spinning nanofibers on plane ceramic substrates (with a large area of 13.4 mm×7 mm) with Ag-Pd signal electrodes only. The operating temperatures of sensors A and B were controlled by adjusting heater currents, and the operating temperatures of sensors C were controlled by adjusting an external temperature control device. Experimental results show that sensors C possess the highest sensing properties, such as high response values (about 42 to 100 μL/L ethanol), quick response/recovery speeds (the response and recovery times were 4 and 7 s, respectively), and excellent consistencies. These phenomena were explained by the retained fiber morphology and suitable sensor area. The presented results can provide some useful information for the design and optimization of one-dimensional nanomaterial-based gas sensors.SnO 2 , semiconductors, electrospinning, nanofibers, gas sensors Citation:Shen R S, Li X P, Xia X C, et al. Comparative investigation of three types of ethanol sensor based on NiO-SnO 2 composite nanofibers.

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Section: Resultsmentioning

confidence: 99%

Comparative investigation of three types of ethanol sensor based on NiO-SnO2 composite nanofibers

Shen

Xia

et al. 2012

Chin. Sci. Bull.

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“…[17,18] Although the value of the exponent applied to the concentration is commonly attributed directly to the different oxygen species at the sensor surface that are proposed to mediate the sensor response recent work has shown that it may, in fact, be due to microstructure. [10,19] The sensing results for the 5 minute deposition (5400 nm-thick) are discussed below.…”

Section: Figure 11:-response Vs [Ethanol]mentioning

confidence: 99%

The gas-sensing properties of WO_3−xthin films deposited via the atmospheric pressure chemical vapour deposition (APCVD) of WCl₆with ethanol

Ashraf

Blackman

Naisbitt

et al. 2008

Meas. Sci. Technol.

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The use of the APCVD reaction of WCl 6 with ethanol to produce tungsten oxide films (3600 -6700 nm-thick) for use as gas sensors is presented. The response of these films to varying concentrations of ethanol and NO 2 at varying temperatures has been examined. A comparison of the CVD sensors to a thick film (~ 60 mm) screen printed sensor has shown the CVD sensors have a faster rate of response, a stable sensing response and faster return to baseline with no drift at the conditions examined. Short titleGas sensing properties of WO 3-x thin films deposited via APCVD

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“…Structure and gas sensing properties of nanowire sensors 3.1 SnO 2 nanowires formed by vapor transport SnO 2 is the gas sensing material that has been most extensively studied (Windischmann & Mark, 1979;Heiland, 1982;Tamaki et al, 1989). SnO 2 nanowires have also recently been studied vigorously as a gas sensing material (Ramirez et al, 2007;Kumar et al, 2009).…”

Section: Evaporation In Ambient Airmentioning

confidence: 99%

Formation of Oxide Nanowires by Thermal Evaporation and Their Application to Gas Sensors

Yamazaki¹

2011

Nanowires - Implementations and Applications

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A Model for the Operation of a Thin‐Film SnO x Conductance‐Modulation Carbon Monoxide Sensor

Abstract: ANODIC OXIDE FILMS 627 some affinity to the effects of chloride on silicon oxidation (11).

Cited by 370 publications

References 10 publications

Comparative investigation of three types of ethanol sensor based on NiO-SnO2 composite nanofibers

Comparative investigation of three types of ethanol sensor based on NiO-SnO2 composite nanofibers

The gas-sensing properties of WO_3−xthin films deposited via the atmospheric pressure chemical vapour deposition (APCVD) of WCl₆with ethanol

Formation of Oxide Nanowires by Thermal Evaporation and Their Application to Gas Sensors

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A Model for the Operation of a Thin‐Film SnO x Conductance‐Modulation Carbon Monoxide Sensor

Abstract: ANODIC OXIDE FILMS 627 some affinity to the effects of chloride on silicon oxidation (11).

Cited by 370 publications

References 10 publications

Comparative investigation of three types of ethanol sensor based on NiO-SnO2 composite nanofibers

Comparative investigation of three types of ethanol sensor based on NiO-SnO2 composite nanofibers

The gas-sensing properties of WO3−xthin films deposited via the atmospheric pressure chemical vapour deposition (APCVD) of WCl6with ethanol

Formation of Oxide Nanowires by Thermal Evaporation and Their Application to Gas Sensors

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Product

Resources

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The gas-sensing properties of WO_3−xthin films deposited via the atmospheric pressure chemical vapour deposition (APCVD) of WCl₆with ethanol