1.Aston Institute of Photonic Technologies, School of Engineering and Applied Science, Aston University, Aston Triangle, Birmingham B47ET, UK
2.Nanoscience Research Group, School of Engineering and Applied Science, Aston University, Aston Triangle, Birmingham B47ET, UK
3.Physics Department, Faculty of Science, University of Sulaimani, Sulaimani, Iraq-Kurdistan Region
4.Faculty of Science and Technology, School of Maths, Computing and Robotics, University of Plymouth, Plymouth PL4 8AA, UK
5.Department of Electrical Engineering, Computer Engineering and Informatics, Cyprus University of Technology, Limassol 3036, Cyprus
T Allsop, Email: t.d.p.allsop@aston.ac.uk
纸质出版日期:2016-03,
网络出版日期:2015-10-24,
收稿日期:2015-05-19,
修回日期:2015-10-19,
录用日期:2015-10-20
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Photonic gas sensors exploiting directly the optical properties of hybrid carbon nanotube localized surface plasmon structures[J]. LSA, 2016,5(1).
Allsop, T. et al. Photonic gas sensors exploiting directly the optical properties of hybrid carbon nanotube localized surface plasmon structures. Light: Science & Applications, 5, e16036 (2016).
Photonic gas sensors exploiting directly the optical properties of hybrid carbon nanotube localized surface plasmon structures[J]. LSA, 2016,5(1). DOI: 10.1038/lsa.2016.36.
Allsop, T. et al. Photonic gas sensors exploiting directly the optical properties of hybrid carbon nanotube localized surface plasmon structures. Light: Science & Applications, 5, e16036 (2016). DOI: 10.1038/lsa.2016.36.
We investigate the modification of the optical properties of carbon nanotubes (CNTs) resulting from a chemical reaction triggered by the presence of a specific compound (gaseous carbon dioxide (CO
2
)) and show this mechanism has important consequences for chemical sensing. CNTs have attracted significant research interest because they can be functionalized for a particular chemical
yielding a specific physical response which suggests many potential applications in the fields of nanotechnology and sensing. So far
however
utilizing their optical properties for this purpose has proven to be challenging. We demonstrate the use of localized surface plasmons generated on a nanostructured thin film
resembling a l
arge array of nano-wires
to detect changes in the optical properties of the CNTs. Chemical selectivity is demonstrated using CO
2
in gaseous form at room temperature. The demonstrated methodology results additionally in a new
electrically passive
optical sensing configuration that opens up the possibilities of using CNTs as sensors in hazardous/explosive environments.
carbon nanotubesgas sensorslocalized surface plasmonsoptical sensing
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