scholarly journals Fiber Optic Chemical Sensors Based on Single-Walled Carbon Nanotubes: Perspectives and Challenges

10.5772/7568 ◽  
2009 ◽  
Author(s):  
Marco Consales ◽  
Antonello Cutolo ◽  
Michele Penza ◽  
Patrizia Aversa ◽  
Michele Giordano ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Sensors ◽  
Fiber Optic ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Fiber Optic Chemical Sensors ◽  
Walled Carbon Nanotubes

scholarly journals Fiber Optic Chemical Nanosensors Based on Engineered Single-Walled Carbon Nanotubes

2008 ◽  
Vol 2008 ◽  
pp. 1-29 ◽  
Author(s):  
M. Consales ◽  
A. Cutolo ◽  
M. Penza ◽  
P. Aversa ◽  
M. Giordano ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Optical Fibers ◽  
Fiber Optic ◽  
Fiber Surface ◽  
Single Walled Carbon Nanotubes ◽  
Operating Conditions ◽  
Single Walled Carbon ◽  
Sensing Applications ◽  
Fiber Technology ◽  
Walled Carbon Nanotubes

In this contribution, a review of the development of high-performance optochemical nanosensors based on the integration of carbon nanotubes with the optical fiber technology is presented. The paper first provide an overview of the amazing features of carbon nanotubes and their exploitation as highly adsorbent nanoscale materials for gas sensing applications. Successively, the attention is focused on the operating principle, fabrication, and characterization of fiber optic chemosensors in the Fabry-Perot type reflectometric configuration, realized by means of the deposition of a thin layer of single-walled carbon nanotubes (SWCNTs) upon the distal end of standard silica optical fibers. This is followed by an extensive review of the excellent sensing capabilities of the realized SWCNTs-based chemical nanosensors against volatile organic compounds and other pollutants in different environments (air and water) and operating conditions (room temperature and cryogenic temperatures). The experimental results reported here reveal that ppm and sub-ppm chemical detection limits, low response times, as well as fast and complete recovery of the sensor responses have been obtained in most of the investigated cases. This evidences the great potentialities of the proposed photonic nanosensors based on SWCNTs to be successfully employed for practical environmental monitoring applications both in liquid and vapor phase as well as for space. Furthermore, the use of novel SWCNTs-based composites as sensitive fiber coatings is proposed to enhance the sensing performance and to improve the adhesion of carbon nanotubes to the fiber surface. Finally, new advanced sensing configurations based on the use of hollow-core optical fibers coated and partially filled by carbon nanotubes are also presented.

Purity Evaluation of Single-Walled Carbon Nanotubes Using Thermogravimetric Analysis

2013 ◽  
Vol 51 (2) ◽  
pp. 137-144
Author(s):  
Naesung Lee ◽  
Jeung Choon Goak ◽  
Tae Yang Kim ◽  
Jongwan Jung ◽  
Young-Soo Seo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermogravimetric Analysis ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Purity Evaluation ◽  
Walled Carbon Nanotubes
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