Cadmium arachidate single-walled carbon nanotubes composites as sensitive coatings for high sensitivity fiber optic chemo-sensors

M. Consales; A. Crescitelli; A. Cutolo; M. Penza; P. Aversa; M. Giordano; A. Cusano

doi:10.1117/12.738619

2 July 2007 Cadmium arachidate single-walled carbon nanotubes composites as sensitive coatings for high sensitivity fiber optic chemo-sensors

M. Consales, A. Crescitelli, A. Cutolo, M. Penza, P. Aversa, M. Giordano, A. Cusano

Author Affiliations +

Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 66191P (2007) https://doi.org/10.1117/12.738619
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

Abstract

In this work, the feasibility to exploit optoelectronic chemo-sensors based on cadmium arachidate (CdA)/single-walled carbon nanotubes (SWCNTs) composites for detection of chemical pollutants both in air and water environments has been investigated. The nanocomposite sensing layers have been transferred upon the distal end of standard optical fibers by the Langmuir-Blodgett (LB) technique. Single wavelength reflectance measurements (&lgr;=1310 nm) have been carried out to monitor chemicals concentration through changes in the optical length of the Fabry-Pérot (FP) cavity induced by the interaction of the sensitive layer with the analyte molecules. The preliminary experimental results evidence the good potentiality of these fiber optic nanosensors to detect toluene and xylene at ppm level both in air and water environments at room temperature.

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M. Consales, A. Crescitelli, A. Cutolo, M. Penza, P. Aversa, M. Giordano, and A. Cusano "Cadmium arachidate single-walled carbon nanotubes composites as sensitive coatings for high sensitivity fiber optic chemo-sensors", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66191P (2 July 2007); https://doi.org/10.1117/12.738619

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