Article

The Use of Terahertz Spectroscopy as a Sensitive Probe in Discriminating the Electronic Properties of Structurally Similar Multi-Walled Carbon Nanotubes

Advanced Materials (impact factor: 13.88). 07/2009; 21(38-39):3953-3957. DOI:10.1002/adma.200900941 pp.3953-3957
Source: OAI

ABSTRACT The use of terahertz spectroscopy as a sensitive probe in discriminating the electronic properties of multi-walled carbon nanotubes. We show that terahertz spectroscopy can definitively distinguish between two MWCNTs (see figure), which have commercial applications in a number of advanced materials. Other techniques do not provide a sensitive discrimination of the measured properties. We rationalize this observation by considering the dielectric nature of the materials and the relationship of this to their structural differences (as observed by TEM).

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Keywords

commercial applications
 
dielectric nature
 
discriminating
 
multi-walled carbon nanotubes
 
sensitive discrimination
 
sensitive probe
 
structural differences
 
terahertz spectroscopy