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Fig. 1 | Nanoscale Research Letters

Fig. 1

From: Carbon Nanotube Assembly and Integration for Applications

Fig. 1

a Formation of SWCNT by rolling a single layer of graphite. b Illustration of forming a CNT from an ideal graphite sheet. The two ends of the chiral vector Ch are superimposed to create a nanotube with 1D lattice vector T and chiral angle ϴ. a1 and a2 are the primitive lattice vectors of 2D graphite (white dots denote lattice pints). The zigzag and armchair wrapping directions are also indicated. c Different types of CNTs based on their chirality. Adapted from [22]. d Electron micrograph image of a double-walled CNT with a diameter of 5.5 nm. Adapted from [78]. e Electron microscope images of a bundle of ~ 100 SWCNTs, packed in a triangular lattice. Adapted from [17]

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