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A Better Method of Manufacturing Nanotubes for Use in Optical and Electronic Devices

F. Allen
Advance Nanotech Inc., US

Keywords:
carbon nanotubes, chirality, semi-conducting, metallic

Abstract:
Carbon nanotubes are vital to the advancement of nanotechnology. Their extreme electronic, optical and mechanical properties enable nanotubes to play a key role in a variety of electronics applications, including transistors, interconnects in integrated circuits and components for optical networks. However, the process of growing nanotubes today is complicated and expensive. To successfully commercialize carbon nanotube applications, scientists must develop a better method of manufacturing nanotubes for use in optical and electronic devices.
 
Single-walled carbon nanotubes can be either semi-conducting or metallic, depending on their twist angle or “chirality.” However, most electronic and optical applications need either semi-conducting or metallic tubes -- not both. Current growth methods produce a mixture of both semi-conducting and metallic tubes. As a result, scientists must separate the different types of nanotubes before they can be used; this is a costly and time-consuming process. This presentation will provide an overview of Advance Nanotech’s work in developing catalysts to control the chirality during the growth process, resulting in the growth of a single type of nanotube (either semi-conducting or metallic).

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