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Title
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Interlayer interaction dffects on the G modes in double-walled carbon nanotubes with different electronic configurations
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Author
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Abstract
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| We present experimental measurements of the features of G band in individual index-identified free-standing double-walled carbon nanotubes. We examine Raman spectra of different electronic configurations of DWNTs, namely: SC@SC, SC@M, M@SC, M@M, and clearly establish that, as in SWNTs, the profile of LO G-mode of each layer is broad (narrow) when the layer is metallic (semiconducting). The dependence of G-modes on the diameter and inter-layer distance in several SC@SC, SC@M, M@SC, M@M index-identified DWNTs is reported. We find, that, independently of the metallic or semiconducting nature of the layers, the frequencies of LO and TO G-mode of the inner and outer layers shift significantly with respect to the frequencies of the same modes in the constituent SWNTs. |
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Language
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English
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Source (journal)
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Physica status solidi: B: basic research. - Berlin
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Publication
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Berlin
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2017
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ISSN
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0370-1972
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DOI
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10.1002/PSSB.201700251
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Volume/pages
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254
:11
(2017)
, p. 1-8
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Article Reference
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1700251
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ISI
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000417609800002
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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