Alkali Atoms Intercalating Induced Metal-Semiconductor and Semiconductor-Semiconductor Transitions in Carbon Nanotubes

Abstract:

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We show that the intercalating of alkali atoms with adequate concentration can transform a metallic single-walled carbon nanotube (SWCNT) into a semiconductor tube or a semiconductor SWCNT into a semiconductor tube with different band gaps due to a unique feature of the band structures in SWCNTs. Results of Li2C60 in the (5,0) tube, Li2C112 in the (4,2) tube and K2C112 in the (7,0) tube show that this transition mechanism is quite general.

Info:

Periodical:

Solid State Phenomena (Volumes 121-123)

Edited by:

Chunli BAI, Sishen XIE, Xing ZHU

Pages:

1003-1006

DOI:

10.4028/www.scientific.net/SSP.121-123.1003

Citation:

X. B. Yang and J. Ni, "Alkali Atoms Intercalating Induced Metal-Semiconductor and Semiconductor-Semiconductor Transitions in Carbon Nanotubes", Solid State Phenomena, Vols. 121-123, pp. 1003-1006, 2007

Online since:

March 2007

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$35.00

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