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Analysis of the Responses of Metal-Oxide Semiconductor Nanostructures to Nitrogen Dioxide

100%
Procek M., Pustelny T.
Acta Physica Polonica A
|
2013
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vol. 124
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issue 3
529-533
EN
The paper concerns analyses of the nanostructures based on metal-oxide semiconductors, such as titanium dioxide (TiO_2) and zinc oxide (ZnO) exposed to nitrogen dioxide (NO_2) in an atmosphere of dry and humid synthetic air. The investigations were performed at a rather low temperature amounting to 120°C. The responses of sensors differing in the morphology of their structures have been compared. Also the time of their responses were compared with each other. The paper describes theoretically changes in the effective resistance of these structures due to the interaction of the gas. The presented results are being discussed based on the analysis of physical and chemical phenomena.
2
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Studies of changes in electrical resistance of zinc oxide nanostructures under the influence of variable gaseous environments

81%
Procek M., Pustelny T., Stolarczyk A., Maciak E.
Bulletin of the Polish Academy of Sciences: Technical Sciences
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2014
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issue 4
3
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The sensitivity of sensor structures with oxide graphene exposed to selected gaseous atmospheres

52%
Urbańczyk M., Opilski Z., Pustelny T., Drewniak S., Setkiewicz M., Maciak E., Procek M., Gut K., Jagiello J., Lipińska L.
Bulletin of the Polish Academy of Sciences: Technical Sciences
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2013
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issue 3
4
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Gas sensors based on nanostructures of semiconductors ZnO and TiO2

52%
Pustelny T., Urbańczyk M., Opilski Z., Stolarczyk A., Procek M., Maciak E., Drewniak S., Setkiewicz M., Gut K.
Bulletin of the Polish Academy of Sciences: Technical Sciences
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2012
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issue 4
5
Content available remote

Investigations of SAW Structures with Oxide Graphene Layer to Detection of Selected Gases

52%
Drewniak S., Pustelny T., Setkiewicz M., Maciak E., Urbańczyk M., Procek M., Opilski Z., Jagiello J., Lipinska L.
Acta Physica Polonica A
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2013
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vol. 124
|
issue 3
402-405
EN
In this paper we present the results of investigations of graphene oxide layers using the SAW structure (structure with surface acoustic wave propagated) exposed to the affect of low concentrations of hydrogen and nitrogen dioxide in synthetic air. During the measurements, the differential signal (from two measuring channels) was recorded. The sensing graphene oxide layer was deposited only on first channel, whereas the second channel was not covered by any additional layer. The tests were made with various concentrations of the analyzed gases and at various temperatures of the sensing structure during the measurements. Analyses were performed with special emphasis on the time response of the sensor structure to changes in the gas atmosphere.
6
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The sensibility of resistance sensor structures with graphene to the action of selected gaseous media

42%
Opilski Z., Stolarczyk A., Pustelny T., Urbańczyk M., Setkiewicz M., Drewniak S., Maciak E., Procek M., Gut K., Pasternak I., Strupinski W.
Bulletin of the Polish Academy of Sciences: Technical Sciences
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2013
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issue 2
7
Content available remote

The Influence of Humidity on the Resistance Structures with Graphene Sensor Layer

42%
Pustelny T., Setkiewicz M., Drewniak S., Maciak E., Stolarczyk A., Procek M., Urbańczyk M., Gut K., Opilski Z., Pasternak I., Strupinski W.
Acta Physica Polonica A
|
2012
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vol. 122
|
issue 5
870-873
EN
In the paper the results of investigations are presented concerning the influence of humidity of air on the resistance of a gas sensor structure with a graphene layer. The affects of nitrogen dioxide and humidity action on graphene were studied. We indicated that humidity might play an important role in determining the gas sensing properties of the graphene layer. In the paper it has been shown that in the case of a nitrogen oxide sensor, the reaction of NO_2 with water vapour can generate permanent defects in graphene.
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