Title :
Chemical Detection in Water by Single-Walled Carbon Nanotubes-Based Optical Fiber Sensors
Author :
Consales, Marco ; Crescitelli, Alessio ; Campopiano, Stefania ; Cutolo, Antonello ; Penza, Michele ; Aversa, Patrizia ; Giordano, Michele ; Cusano, Andrea
Author_Institution :
Univ. of Sannio, Benevento
fDate :
7/1/2007 12:00:00 AM
Abstract :
In this letter, the possibility to use single-walled carbon nanotubes (SWCNTs) as sensitive nanostructured material for the development of an optoelectronic sensor that can perform chemical detection in water has been investigated and demonstrated for the first time. The fabricated sensor has been employed in a reflectometric system involving single wavelength reflectance measurements. The good stability of the steady-state signal, the high sensitivity, as well as the good response dynamics obtained in the case of toluene detection confirm the potentiality of SWCNTs to be employed in a water environment.
Keywords :
carbon nanotubes; chemical sensors; fibre optic sensors; reflectometry; chemical detection; optical fiber sensors; optoelectronic sensor; reflectometric system; response dynamics; sensitive nanostructured material; single wavelength reflectance measurements; single-walled carbon nanotubes; steady-state signal; toluene detection; water environment; Carbon nanotubes; Chemical sensors; Nanostructured materials; Optical fiber sensors; Optoelectronic and photonic sensors; Reflectivity; Sensor systems; Stability; Steady-state; Wavelength measurement; Optical fiber sensors; single-walled carbon nanotubes (SWCNTs); toluene detection in water;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2006.887928
