Directly observable G band splitting in Raman spectra from individual tubular graphite cones

NG Shang, SRP Silva, X Jiang, P Papakonstantinou

Research output: Contribution to journalArticle

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Abstract

Individual tubular graphite cones (TGCs) are characterized using Raman spectroscopy atroom temperature. A split G band at 1569–1587 cmÿ1 is directly observed from the root tothe tip of TGCs without requiring surface electromagnetic and chemical enhancementeffects. The G band can be deconvoluted into two Lorentzian peaks at 1571 ± 2 and1584 ± 3 cmÿ1, which may be attributed to the resonance enhancement of a single chiralityexcitation in the innermost tubes and all constituent tubes of the TGCs, respectively.Results suggest that the splitting of G band can be envisaged as a fingerprint for monochiralityof tubular carbon nanomaterials.
LanguageEnglish
Pages3048-3054
JournalCARBON
Volume49
DOIs
Publication statusPublished - 17 Mar 2011

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Nanostructured materials
Raman spectroscopy
Carbon
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title = "Directly observable G band splitting in Raman spectra from individual tubular graphite cones",
abstract = "Individual tubular graphite cones (TGCs) are characterized using Raman spectroscopy atroom temperature. A split G band at 1569–1587 cm{\"y}1 is directly observed from the root tothe tip of TGCs without requiring surface electromagnetic and chemical enhancementeffects. The G band can be deconvoluted into two Lorentzian peaks at 1571 ± 2 and1584 ± 3 cm{\"y}1, which may be attributed to the resonance enhancement of a single chiralityexcitation in the innermost tubes and all constituent tubes of the TGCs, respectively.Results suggest that the splitting of G band can be envisaged as a fingerprint for monochiralityof tubular carbon nanomaterials.",
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Directly observable G band splitting in Raman spectra from individual tubular graphite cones. / Shang, NG; Silva, SRP; Jiang, X; Papakonstantinou, P.

Vol. 49, 17.03.2011, p. 3048-3054.

Research output: Contribution to journalArticle

TY - JOUR

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AU - Shang, NG

AU - Silva, SRP

AU - Jiang, X

AU - Papakonstantinou, P

PY - 2011/3/17

Y1 - 2011/3/17

N2 - Individual tubular graphite cones (TGCs) are characterized using Raman spectroscopy atroom temperature. A split G band at 1569–1587 cmÿ1 is directly observed from the root tothe tip of TGCs without requiring surface electromagnetic and chemical enhancementeffects. The G band can be deconvoluted into two Lorentzian peaks at 1571 ± 2 and1584 ± 3 cmÿ1, which may be attributed to the resonance enhancement of a single chiralityexcitation in the innermost tubes and all constituent tubes of the TGCs, respectively.Results suggest that the splitting of G band can be envisaged as a fingerprint for monochiralityof tubular carbon nanomaterials.

AB - Individual tubular graphite cones (TGCs) are characterized using Raman spectroscopy atroom temperature. A split G band at 1569–1587 cmÿ1 is directly observed from the root tothe tip of TGCs without requiring surface electromagnetic and chemical enhancementeffects. The G band can be deconvoluted into two Lorentzian peaks at 1571 ± 2 and1584 ± 3 cmÿ1, which may be attributed to the resonance enhancement of a single chiralityexcitation in the innermost tubes and all constituent tubes of the TGCs, respectively.Results suggest that the splitting of G band can be envisaged as a fingerprint for monochiralityof tubular carbon nanomaterials.

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DO - 10.1016/j.carbon.2011.03.025

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