Nano and Microelectromechanical Systems P3

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Nano and Microelectromechanical Systems P3

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Carbon Nanotubes and Nanodevices Carbon nanotubes, discovered in 1991, are molecular structures which consist of graphene cylinders closed at either end with caps containing pentagonal rings. Carbon nanotubes are produced by vaporizing carbon graphite with an electric arc under an inert atmosphere. The carbon molecules organize a perfect network of hexagonal graphite rolled up onto itself to form a hollow tube. Buckytubes are extremely strong and flexible and can be single- or multi-walled. The standard arc-evaporation method produces only multilayered tubes, and the single-layer uniform nanotubes (constant diameter) were synthesis only a couple years ago. One can fill nanotubes with...

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Nội dung Text: Nano and Microelectromechanical Systems P3

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