Thomas Allsop
Detection of nitrous oxide using infrared optical plasmonics coupled with carbon nanotubes
Allsop, Thomas; Al Araimi, Mohammed; Neal, Ron; Wang, Changle; Culverhouse, Phil; Ania-Castañón, Juan D.; Webb, David J.; Davey, Paul; Gilbert, James M.; Rozhin, Alex
Authors
Mohammed Al Araimi
Ron Neal
Changle Wang
Phil Culverhouse
Juan D. Ania-Castañón
David J. Webb
Paul Davey
Professor James Gilbert J.M.Gilbert@hull.ac.uk
Professor of Engineering
Alex Rozhin
Abstract
© The Royal Society of Chemistry 2020. Interest in gas sensing using functionalised carbon nanotubes is a major area of research that utilises changes in their electrical properties induced by the reaction with a specific gas. This paper describes specific gas sensing on an optical platform consisting of a 2-dimensional nano-structured plasmonic array of nano-antennae/nanowires, with topological dimensions of mean radius of 130 nm, typical length of 20 μm and a period of 500 nm. The array is created by the spatial compaction of germanium oxides when the material interacts with ultra-violet irradiance, it can support infra-red localised surface plasmons. Carbon nanotubes are deposited upon the surface of the plasmonic platform followed by the application of the polyethyleneimine polymer. The resulting nanomaterials-photonic platform gives rise to the selective response to nitrous oxide gases, which are a major contributor to atmospheric degradation. We achieve the device sensitivity up to 100% atmosphere of nitrous oxide with a detection limit of 109 ppm, a maxiumum response time of nineteen seconds and yielding a full-scale deflection of +5.7 nm. This work demonstrates that the optical properties of specific carbon nanotubes can be used in a wide range of sensing applications offering a new sensing paradigm.
Citation
Allsop, T., Al Araimi, M., Neal, R., Wang, C., Culverhouse, P., Ania-Castañón, J. D., …Rozhin, A. (2020). Detection of nitrous oxide using infrared optical plasmonics coupled with carbon nanotubes. Nanoscale advances, 2(10), 4615-4626. https://doi.org/10.1039/d0na00525h
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 12, 2020 |
Online Publication Date | Sep 16, 2020 |
Publication Date | Oct 1, 2020 |
Deposit Date | Apr 1, 2022 |
Publicly Available Date | Apr 4, 2022 |
Journal | Nanoscale Advances |
Electronic ISSN | 2516-0230 |
Publisher | Royal Society of Chemistry |
Peer Reviewed | Peer Reviewed |
Volume | 2 |
Issue | 10 |
Pages | 4615-4626 |
DOI | https://doi.org/10.1039/d0na00525h |
Public URL | https://hull-repository.worktribe.com/output/3647634 |
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Copyright Statement
This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
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