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Founded: 1998
# of Employees: 10-100
Industry: NanoTubes
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Description:
Carbon nanotubes are tubular forms of carbon that can be envisaged as graphitic sheets rolled into cylindrical form. These nanotubes have diameters in the range of few nanometers and their lengths are up to several micrometers. Each nanotube is a single molecule made up of a hexagonal network of covalently bonded carbon atoms. Carbon nanotubes are of two types: single-walled and multi-walled. A single-walled carbon nanotube (SWNT) consists of a single graphene cylinder, whereas a multi-walled carbon nanotube (MWNT) comprises several concentric graphene cylinders. A schematic representation of a SWNT structure is shown in the figure below.
Strong covalent bonding, unique one-dimensional structure and nanometer size, together impart unusual properties to the nanotubes. These properties include exceptionally high tensile strength, high resilience, electronic properties ranging from metallic to semi-conducting, the ability to sustain high current densities and high thermal conductivity. Thus carbon nanotubes could be used as fillers in super-strong composite materials, as wires and components in nano-electronic devices, as tips of scanning probe microscopes and in flat panel displays and gas sensors. |
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