摘要
The single-wall carbon nanotubes (SWCNs) were discovered in '93 and are made of pure carbon atoms just like a single sheet of graphite wrapped around acylindrical axis. The same material with slight varia-tions in the geometrical arrangement yields different electronic properties, which could range from metallic to semiconducting behavior. They have fascinatingchemical,
基金
support provided by the Major-Research Plane-Nanoscience and Technology Basic Research(90206032)
the Outstanding Youth scholars Fund(10125523)of the National Natural Science Foundation of China.
