Flexible ultra-sensitive and resistive NO2 gas sensor based on nanostructured Zn(x)Fe(1−x)2O4

Goutham, Solleti and Sadasivuni, Kishor Kumar and Devarai, Santhosh Kumar and Rao, Kalagadda Venkateswara (2018) Flexible ultra-sensitive and resistive NO2 gas sensor based on nanostructured Zn(x)Fe(1−x)2O4. RSC Advances, 8 (6). pp. 3243-3249. ISSN 2046-2069

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Low concentration gas detection, rapid response time and low working temperature are anticipated for a varied range of toxic gas detection applications. Conversely, the existing gas sensors suffer mostly from a high working temperature along with a slow response at low concentrations of analytes. Here, we report an ultrasensitive flexible nanostructured Zn(x)Fe(1−x)2O4 (x = 0.1, 0.5 and 0.9) based chemiresistive sensor for nitrogen dioxide (NO2) detection. We evince that the prepared flexible sensor Zn(0.5)Fe(0.5)2O4 has detection potential as low as 5 ppm at a working temperature of 90 °C in a short phase. Further, the Zn(0.5)Fe(0.5)2O4 sensor exhibits excellent selectivity, stability and repeatability. The optimized sensor sensing characteristics can be helpful in tremendous development of foldable mobile devices for environmental monitoring, protection and control.

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IITH Creators:
IITH CreatorsORCiD
Devarai, Santhosh KumarUNSPECIFIED
Item Type: Article
Subjects: Chemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: Team Library
Date Deposited: 01 Feb 2018 10:01
Last Modified: 14 Jan 2019 09:28
URI: http://raiith.iith.ac.in/id/eprint/3758
Publisher URL: http://doi.org/10.1039/C7RA10478B
OA policy: http://www.sherpa.ac.uk/romeo/issn/2046-2069/
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