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Optical properties of 0.4-nm single-wall carbon nanotubes aligned in channels of AlPO 4 -5 single crystals
Li Z.M.; Liu H.J.; Ye J.T.; Chan C.T.; Tang Z.K.
2004
Source PublicationApplied Physics A: Materials Science and Processing
ISSN09478396
Volume78Issue:8Pages:1121-1128
AbstractSingle-walled carbon nanotubes (SWNTs) of 0.4 nm in diameter are produced inside channels of microporous zeolite single crystals. Three possible structures: (5, 0), (4, 2), and (3, 3) contribute to three bands at 1.37, 2.1, and 3.1 eV in optical absorption spectra. The direct correspondence between chiralities and absorption bands is identified by density functional calculations. The resonant Raman spectrum shows the features that can be assigned to van Have singularities in calculated phonon density of states. In the low-frequency region, two peaks at 510 and 550 cm are attributed to the radial breathing modes (RBMs) of the (5, 0) and (4, 2) tubes. After removing the zeolite framework, the RBM frequencies downshift by ∼10 cm . The charge-transfer behavior in lithium-doped 0.4-nm SWNTs is investigated. The Raman peak at 1558 cm couples with the electronic continuum, and shows a Breit-Wigner-Fano line shape.
DOI10.1007/s00339-003-2463-3
URLView the original
Language英語
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Cited Times [WOS]:25   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
AffiliationHong Kong University of Science and Technology
Recommended Citation
GB/T 7714
Li Z.M.,Liu H.J.,Ye J.T.,et al. Optical properties of 0.4-nm single-wall carbon nanotubes aligned in channels of AlPO 4 -5 single crystals[J]. Applied Physics A: Materials Science and Processing,2004,78(8):1121-1128.
APA Li Z.M.,Liu H.J.,Ye J.T.,Chan C.T.,&Tang Z.K..(2004).Optical properties of 0.4-nm single-wall carbon nanotubes aligned in channels of AlPO 4 -5 single crystals.Applied Physics A: Materials Science and Processing,78(8),1121-1128.
MLA Li Z.M.,et al."Optical properties of 0.4-nm single-wall carbon nanotubes aligned in channels of AlPO 4 -5 single crystals".Applied Physics A: Materials Science and Processing 78.8(2004):1121-1128.
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