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In order to explore novel functional nanomaterials, we have developed a new synthesis method of SWNTs encapsulating foreign elements by the bias-voltage application to SWNTs in plasmas, which contain oppositely-charged ions of different species. In contrast to pristine samples, a remarkable change of the nanotube structure is observed after the plasma-ion irradiation. The Cs encapsulation inside SWNTs is for the first time realized and the encapsulated Cs configuration is confirmed to comprise three varieties. C60 encapsulated SWNTs are also found to be effectively synthesized in the case of the positive bias application in the alkali-fullerene plasma. The yield on peapod formation is directly proportional to the plasma density used. In the end, it is noteworthy that our unique experimental approach is a good candidate for the creation of novel-functional nanomaterials.
Nanotechnology, 2003. IEEE-NANO 2003. 2003 Third IEEE Conference on (Volume:2 )
Date of Conference: 12-14 Aug. 2003