Carbon nanotube

Field emission

Secondary electron emission(SEE)

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Carbon nanotube

Carbon nanotubes are graphene sheets rolled-up into cylinders with diameters as small as one nanometer.. Besides diamond, graphite and C60, quasi one dimensional nanotube is another form of carbon first reported by Iijima in 1991 when he discovered multi-walled carbon nanotubes (MWNT) in carbon-soot made by an arc-discharge method. About two years later, he made the observation of single-walled nanotubes (SWNTs)., Discovery of carbon nanotubes (CNTs) opened a new world of research in the ideal one dimensional structure.
 
 

Their exceptional structural, electrical and mechanical properties have been validated many potential applications such as field emission and nanoelectronics, and stimulated a large amount of researches to optimize the synthesis and properties of CNTs.