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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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 |
|---|---|
| Publication: | SCIENTIFIC REPORTS |
| Publisher: | NATURE PUBLISHING GROUP |
| Additional Information: | Copyright of this article is belongs to the authors |
| Department/Centre: | Division of Chemical Sciences > Materials Research Centre |
| 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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