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Semiconductor Gas Sensors: Materials, Technology, Design, and Application

1
Institute for Multidisciplinary Research, University of Belgrade, 11030 Belgrade, Serbia
2
Faculty of Engineering, University of Kragujevac, 34000 Kragujevac, Serbia
3
IHP—Leibniz-Institut Für Innovative Mikroelektronik, 15236 Frankfurt (Oder), Germany
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(22), 6694; https://doi.org/10.3390/s20226694
Received: 24 October 2020 / Revised: 12 November 2020 / Accepted: 19 November 2020 / Published: 23 November 2020
(This article belongs to the Section Electronic Sensors)
This paper presents an overview of semiconductor materials used in gas sensors, their technology, design, and application. Semiconductor materials include metal oxides, conducting polymers, carbon nanotubes, and 2D materials. Metal oxides are most often the first choice due to their ease of fabrication, low cost, high sensitivity, and stability. Some of their disadvantages are low selectivity and high operating temperature. Conducting polymers have the advantage of a low operating temperature and can detect many organic vapors. They are flexible but affected by humidity. Carbon nanotubes are chemically and mechanically stable and are sensitive towards NO and NH3, but need dopants or modifications to sense other gases. Graphene, transition metal chalcogenides, boron nitride, transition metal carbides/nitrides, metal organic frameworks, and metal oxide nanosheets as 2D materials represent gas-sensing materials of the future, especially in medical devices, such as breath sensing. This overview covers the most used semiconducting materials in gas sensing, their synthesis methods and morphology, especially oxide nanostructures, heterostructures, and 2D materials, as well as sensor technology and design, application in advance electronic circuits and systems, and research challenges from the perspective of emerging technologies. View Full-Text
Keywords: semiconductor gas sensors; gas sensing materials; sensing technology; gas sensor applications semiconductor gas sensors; gas sensing materials; sensing technology; gas sensor applications
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MDPI and ACS Style

Nikolic, M.V.; Milovanovic, V.; Vasiljevic, Z.Z.; Stamenkovic, Z. Semiconductor Gas Sensors: Materials, Technology, Design, and Application. Sensors 2020, 20, 6694.

AMA Style

Nikolic MV, Milovanovic V, Vasiljevic ZZ, Stamenkovic Z. Semiconductor Gas Sensors: Materials, Technology, Design, and Application. Sensors. 2020; 20(22):6694.

Chicago/Turabian Style

Nikolic, Maria V.; Milovanovic, Vladimir; Vasiljevic, Zorka Z.; Stamenkovic, Zoran. 2020. "Semiconductor Gas Sensors: Materials, Technology, Design, and Application" Sensors 20, no. 22: 6694.

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