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Nanosensors based on individual hybrid structures and their application in gas sensing at room temperature

Show simple item record POSTICA, Vasile RASCH, Florian SCHÜTT, Fabian ADELUNG, Rainer LUPAN, Oleg 2020-06-11T10:47:45Z 2020-06-11T10:47:45Z 2020
dc.identifier.citation POSTICA, Vasile, RASCH, Florian, SCHÜTT, Fabian et al. Nanosensors based on individual hybrid structures and their application in gas sensing at room temperature. In: Journal of Engineering Science. 2020, Vol. 27(2), pp. 76-86. ISSN 2587-3474. eISSN 2587-3482. en_US
dc.identifier.issn 2587-3474
dc.identifier.issn 2587-3482
dc.description.abstract Because the commercialization of nanosensors in the field of gas sensing is still in its infancy, many efforts have been made to develop efficient methods to increase their performances. A special attention was paid to the increase of the sensitivity and selectivity of the gas nanosensors based on individual micro - or nanostructures using different strategies. In this work, the recent results in the field of high-performance gas nanosensors obtained by the research group from Centre for Nanotechnology and Nanosensors, Technical University of Moldova in collaboration with Kiel University, Germany are highlighted and summarized. The quasi-uni-dimensional (1-D) and three-dimensional (3-D) individual hybrid structures based on zinc oxide were integrated into nanodevices using a focused ion beam/scanning electron microscopy (FIB/SEM) instrument. The hybridization of the individual ZnO structures is shown to result in a considerable increase in gas response, as well as a change in selectivity to volatile organic compounds and ammonia. Particularly, an increase in hydrogen gas response (by about 2 times) was obtained by surface functionalization with ZnAl2O4 nanoparticles, while a change in selectivity to ethanol vapors and ammonia was obtained by surface functionalization with Fe2O3 nanoparticles or buckminster fullerenes (C60) and carbon nanotubes (CNTs), respectively. The obtained results provide new avenues for the rational engineering of gas nanosensors by the use of hybrid nanomaterial systems with enhanced synergistic catalytic behavior and potential barrier manipulation. en_US
dc.language.iso en en_US
dc.publisher Tehnica UTM en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri *
dc.subject hybrid materials en_US
dc.subject hybrid structures en_US
dc.subject nanosensors en_US
dc.subject gas sensors en_US
dc.subject materiale hibride en_US
dc.subject nanosenzori en_US
dc.subject senzori de gaze en_US
dc.title Nanosensors based on individual hybrid structures and their application in gas sensing at room temperature en_US
dc.type Article en_US

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