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Proceedings Paper

SWCNTs-based nanocomposites as sensitive coatings for advanced fiber optic chemical nanosensors
Author(s): M. Consales; A. Crescitelli; M. Penza; P. Aversa; M. Giordano; A. Cutolo; A. Cusano
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Paper Abstract

In this work, the feasibility of exploiting novel Cadmium Arachidate (CdA)/single-walled carbon nanotubes (SWCNTs) based composites as sensitive coatings for the development of robust and high performances optoelectronic chemosensors able to work in liquid environments has been investigated and proved. Here, nano-composite sensing layers have been transferred upon the distal end of standard optical fibers by the Langmuir-Blodgett (LB) technique. Reflectance measurements have been carried out to monitor ppm concentration of chemicals in water through the changes in the optical and geometrical features of the sensing overlay induced by the interaction with the analyte molecules. Preliminary experimental results evidence that such nanoscale coatings integrated with the optical fiber technology offers great potentialities for the room temperature detection of chemical traces in water and lead to significant improvements of the traditional fiber optic sensors based on SWCNTs layers.

Paper Details

Date Published: 30 April 2008
PDF: 9 pages
Proc. SPIE 7003, Optical Sensors 2008, 70030E (30 April 2008); doi: 10.1117/12.781367
Show Author Affiliations
M. Consales, Univ. of Sannio (Italy)
A. Crescitelli, Univ. of Sannio (Italy)
M. Penza, ENEA (Italy)
P. Aversa, ENEA (Italy)
M. Giordano, Institute for Composite and Biomedical Materials, CNR (Italy)
A. Cutolo, Univ. of Sannio (Italy)
A. Cusano, Univ. of Sannio (Italy)

Published in SPIE Proceedings Vol. 7003:
Optical Sensors 2008
Francis Berghmans; Patrick P. Meyrueis; Thomas P. Pearsall; Anna Grazia Mignani; Antonello Cutolo, Editor(s)

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