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Nanocomposite based flexible ultrasensitive resistive gas sensor for chemical reactions studies

Pandey, Sadanand and Goswami, Gopal K and Nanda, Karuna K (2013) Nanocomposite based flexible ultrasensitive resistive gas sensor for chemical reactions studies. In: SCIENTIFIC REPORTS, 3 .

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Official URL: http://dx.doi.org/10.1038/srep02082

Abstract

Room temperature operation, low detection limit and fast response time are highly desirable for a wide range of gas sensing applications. However, the available gas sensors suffer mainly from high temperature operation or external stimulation for response/recovery. Here, we report an ultrasensitive-flexible-silver-nanoparticle based nanocomposite resistive sensor for ammonia detection and established the sensing mechanism. We show that the nanocomposite can detect ammonia as low as 500 parts-per-trillion at room temperature in a minute time. Furthermore, the evolution of ammonia from different chemical reactions has been demonstrated using the nanocomposite sensor as an example. Our results demonstrate the proof-of-concept for the new detector to be used in several applications including homeland security, environmental pollution and leak detection in research laboratories and many others.

Item Type: Journal Article
Additional Information: Copyright of this article is belongs to the authors
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Depositing User: Id for Latest eprints
Date Deposited: 05 Sep 2013 06:09
Last Modified: 05 Sep 2013 06:11
URI: http://eprints.iisc.ac.in/id/eprint/47058

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