Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/69587
標題: Far-infrared to visible transmission spectroscopy of single-wall carbon nanotubes
作者: Lee, M.W.
Chen, Y.C.
關鍵字: carbon
nanotubes
transmission
optics
absorption
electronic-structure
graphene tubules
films
期刊/報告no:: Japanese Journal of Applied Physics Part 1-Regular Papers Brief Communications & Review Papers, Volume 41, Issue 7A, Page(s) 4663-4665.
摘要: This paper examines the transmission spectra of single-wall carbon nanotubes over a wide range of energies of 0.015-5 eV. Up to seven resolved optical transitions, several of them unobserved in earlier work, are seen in the range, 0.5-4 eV at room temperature. New fine optical structures appear at E = 2.75 and 2.91 eV as the sample temperature is reduced. The spectrum exhibits Drude-like behavior in the low-energy infrared region. The absorption peaks are attributable to electronic transitions between density-of-state peaks of either metallic or semiconducting nanotubes. The high sensitivity of the present work allows researchers to resolve weak optical structures in carbon nanotubes.
URI: http://hdl.handle.net/11455/69587
ISSN: 0021-4922
文章連結: http://dx.doi.org/10.1143/jjap.41.4663
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