Title :
Electrical transport properties of alkali-metal/halogen encapsulated single-walled carbon nanotubes
Author :
Shishido, J. ; Kato, T. ; Oohara, W. ; Hatakeyama, R. ; Tohji, K.
Author_Institution :
Dept. of Electron. Eng., Tohoku Univ., Sendai
Abstract :
The encapsulation of alkali-metal or halogen inside single-walled carbon nanotubes (SWNTs) can be realized by a novel alkali-halogen plasma irradiation method. According to electronic transport measurements, it is found that a p-type semiconductor behavior can be strongly improved by encapsulating iodine atoms. Furthermore, a p-n junction diode-like feature is observed by selective encapsulation of cesium and iodine atoms in one individual SWNT.
Keywords :
caesium; carbon nanotubes; iodine; p-n junctions; plasma materials processing; radiation effects; C; alkali-halogen plasma method; alkali-metal-halogen encapsulated single-walled carbon nanotubes; cesium atoms; electrical transport properties; electronic transport measurements; iodine atoms; p-n junction diode; p-type semiconductor; Atomic measurements; Carbon nanotubes; Cathodes; Electrons; Encapsulation; Plasma accelerators; Plasma measurements; Plasma properties; Probes; Semiconductor diodes; SWNT-FET; alkali-halogen plasma; atoms encapsulated SWNTs; p-n junction diode;
Conference_Titel :
Nanotechnology, 2007. IEEE-NANO 2007. 7th IEEE Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-0607-4
Electronic_ISBN :
978-1-4244-0608-1
DOI :
10.1109/NANO.2007.4601272
